Tree News

WGST Advises Homeowners to Inspect Their Trees

2011-04-06T12:19:00.000-07:00

Following Sunday night's strong winds across Atlanta , radio station WGST interviewed Susan Granberry of the Georgia Forestry Commission. The main question posed to Susan was: "what should people do if they are worried about their trees?"

Susan's answer? Simple. "Homeowners should immediately inspect their trees following a storm."

Excellent idea! We like that. In fact, we recommend regular tree inspections so that a property owner is prepared before any storms. If you have vary large trees, you should have them professionally inspected at least every 3 years. If you have never had your trees inspected, nowis the time. A basic inspection costs less than the yearly maintenance inspections of your furnace - and a furnace is not likely to damage anything if it falls during a storm.

Tree Removal - Atlanta procedures

2011-03-10T09:47:00.000-08:00

Prior to making the decision to remove a tree, it is critical to determine whether the tree presents any kind of risk to your home or property. These steps are recommended to assure you are spending your money wisely and not wasting a valuable natural resource:

Have your entire property inspected by an unbiased arborist. You should pay to have this service completed. A consulting arborist is going to be concerned with assessing risk, and not selling you tree removal services. It is worth every penny.
Evaluate the impact the tree removal will have on your property. How will it change your landscape? Will it increase sunlight, open views, or create erosion problems? Will you need to spend additional resources in cleanup, landscaping, or replanting?
Investigate the local laws concerning tree removal. The Atlanta area has many municipal ordinances that regulate tree removal on private property. Contact your local office of Community Development or City Manager. Don't forget to refer to your community and HOA by-laws as well. Many golf-course communities also have covenants affecting the removal of trees and vegetation.

Onebark Consulting Arborist provides several affordable consulting packages for homeowners and community managers.

Will trees, limbs, and branches break from the snow?

2011-01-10T13:16:00.000-08:00

The risk is high when heavy, wet snow accumulates on the tree, the snow has a snow-water equivalent ratio of between 6:1 and 12:1, and weighs in excess of 10 pounds per square foot. This risk is greater when the trees have full leaves or are not adapted to snow. Light powdery stuff is much less likely to cause problems.

Source: http://en.wikipedia.org/wiki/Snow

Atlanta receives Municipal Arborist Accreditation

2010-10-15T07:20:00.000-07:00

From the Georgia Urban Forest Council - The City of Atlanta is the latest community to join a prestigious group of municipalities to be accredited by the Society of Municipal Arborists. SMA Accreditation is the highest national honor for municipal urban forestry programs.

SMA Accredited programs have a certified municipal specialist on staff, have an approved Local Forest Master Plan, are Tree City USA growth award recipients, show private contract preference for accredited tree care companies, adhere to industry standards for safety and performance, and adhere to SMA’s Code of Ethics. “The SMA accreditation is yet another example of the City of Atlanta’s commitment to excellence,” said Mayor Kasim Reed. “I commend the members of the city’s Arborist Division and the Office of Parks for their dedication and willingness to sharpen their skills and achieve the highest professional standards for the benefit of the citizens of Atlanta.”

The City of Atlanta is the first municipality to be accredited in the state of Georgia, and fifth nationwide, joining the cities of Aspen, Colorado; Glencoe, Illinois; Arlington, Texas; and Downers Grove, Illinois.

City of Atlanta Updates its Arborist List

2010-09-25T08:40:00.000-07:00

This map is current as of September 2, 2010

NW: Michael Franklin, 404.330.6079

NE: David Tachon, 404.330.6077

SW & SE: Stan Domengeaux, 404.330.6078

City of Atlanta Updates it Arborist List

2010-01-29T07:03:00.000-08:00

The Arborist Division of the Atlanta City Government regularly updates a list of their city Arborists. There are five municipal field personnel, each responsible for a quadrant. They are:

Area 1: Michael Franklin, 404.330.6079
Area 2: David Tachon, 404.330.6077
Area 3: Stan Domengeaux, 404.330.6078
Area 4: Janell Bazile, 404.330.6071
Area 5: Paul Lewkowicz, 404.330.6882

Trees and the Atlanta Storms

2009-05-02T14:51:00.000-07:00

An interesting chart regarding the April windstorms has been posted at the OnebarkBlog.

Atlanta Storms

2009-04-16T17:44:00.000-07:00

I've begun a series of short articles regarding the recent Atlanta storms on the Onebark Blog. Check it out; I'll be posting installments over the next week.

Freak Windstorm Batters Trees Across Atlanta

2009-04-13T09:46:00.001-07:00

This morning, the metro residents were awakened to several hours of falling trees and limbs.

Although the weather system did not look particularly ominous, I struck out for my morning appointments. In northwest Atlanta, I was greeted by residential streets blocked by both dead and live trees that had toppled across the roadways. In one instance, as I backed away from a fallen tree in the Margaret Mitchell neighborhood, I caught a glimpse of a pine falling across the street behind me. I was now actually blocked on both sides!

I was able to get out of my Jeep, and quickly pull back enough of the tree top to create an escape route. This is one of the few times in storm history that I was afraid to be in my vehicle. I drove down the street to a cul-de-sac, where no tall trees existed, until the winds died down.

This windstorm was caused by intermittent downdrafts, creating wave-like patterns across the landscape. These waves are very forceful and can cause trees to fail in unexpected ways.

Eastern Tent Caterpillars Active

2009-03-24T07:16:00.001-07:00

The eastern tent caterpillar was seen in full force yesterday. Mostly a pest of Black cherry Prunus serrata here in the Southeast, it can sometimes be seen in several other common trees as well. The caterpillar forms a dense, white 'tent' in the crotches of tree branches, where the caterpillar rests.

While it is not a particularly damaging insect, it can weaken already stressed trees by causing the host tree to sprout new leaves. This resprouting leaves the tree with a short energy deficeit in the early spring.

It is rarely worth trying to control this insect unless they are active in a high-value tree. Broadcast sprays of insecticides work well but are environmentally risky; professional systemic control with Acephate is confined and effective.

Cobb County Tree Planting Continues

2009-03-18T13:14:00.000-07:00

Keep Cobb Beautiful’s program "Cobb Trees" is hosting its season finale tree planting on Saturday, March 21, at the walking trails of Al Bishop Park, 1082 Al Bishop Drive, Marietta.

This comes on the heels of Marietta's recent mass, citywide tree replacement program.

Volunteers are needed to help preserve and beautify this area. Check-in and refreshments begin at 8:30 a.m. with a demonstration and planting at 9 a.m. To celebrate the successful season, a cookout will follow the tree planting.

Pre-registration is required to ensure adequate food, supplies and planting materials for volunteers. To volunteer, visit Keep Cobb Beautiful, or call (770) 528-1135 and ask for the Cobb Trees program.

Ambrosia Beetle Activity Sighted in Georgia Nursery

2009-03-13T15:06:00.000-07:00

The dreaded Asian Ambrosia Beetle has made its seasonal appearance. Asian ambrosia beetle damage was found at two Georgia nurseries [names withheld], attacking an October Glory red maple and some other woody plant material.

The Asian Ambrosia beetle is a minute ambrosia beetle of Asian origin that was first detected in the continental United States near Charleston, South Carolina. It apparently has spread along the lower Piedmont region and coastal plain to North Carolina, Louisiana, Florida, and East Texas.

Xylosandrus crassiusculus adult beetles and larva bore into the trunks of trees, excavating a system of tunnels and introduce a fungus on which they feed. The fungus clogs the xylem, killing the plant. Beetle damage can be seen as spines of boring dust, with the appearance of a broken toothpick, protruding from tiny holes. Unlike other ambrosia beetles, which normally attack only stressed or damaged plants, Asian ambrosia beetles can attack reasonably healthy plants.

Preventative insecticidal sprays can reduce infestations.

Thanks to Tim Thoms, of Thoms Trees and Plants, Inc. for the tip.

Advanced Tree Appraisal Workshop

2009-02-03T12:39:00.000-08:00

The Georgia Urban Forestry Council is offering an advanced skills course in tree appraisal:

Location: Macon Museum of Arts and Sciences, 4182 Forsyth Road, Macon, GA. Participants will review the common methodologies available to tree appraisers, and delve into how these methodologies apply to real-world scenarios. Topics will include tree appraisal theory, review of common alternative methods, unusual circumstances, and development of the value premise. Both beginners and more advanced students will benefit.

Instructors: Jesse Milton, President, Onebark, Board Certified Master Arborist; Rob Swanson, President, Specimen Tree, Certified Arborist February 11, 8:30 a.m to 4 p.m. $100 members, $110 non-members Lunch provided.

6 ISA CEUs and 7 SAF contact hours will be offered. Certificates of attendance are available for all. Click here for a registration form (PDF).

Cold Snap Not a Problem for Windmill Palm

2009-01-16T08:34:00.001-08:00

Palms are not just for warm climates. The Windmill Palm Trachycarpus fortunei is the most cold hardy Palm 'tree' that you can grow in the Piedmont, tolerating temperatures as low as 5 degrees Fahrenheit.

The trunk of this tree can mature between 20 and 40 feet, depending on soil and sunlight conditions. Full, blazing sun is the key to growing this palm. This tree, er...grass, can fit well into small areas like courtyards and entries. It is often seen as a framing accent near Mediterranean-influenced architecture.

One of my favorite contexts is the Windmill palm planted in a group, especially when palms of different heights are staggered in irregular patterns.

The trick to finding a palm species to grow in Atlanta is finding one that will tolerate the cold, heat, AND humidity.

Early Blooms seen on Red Maples

2009-01-07T11:11:00.001-08:00

Several patches of urban-planted Red maples were seen to have flower blooms as recently as Tuesday, January 6. This is one of the earliest Atlanta sightings in recent memory.

It appears the early bloomers are primarily cultivated varieties, most of which are near parking lots or landscaped areas.

First-grade Teacher Wins Tree Grant for School

2009-01-03T07:09:00.000-08:00

Alicia Lindsey, of Mansfield Elementary near Covington, has secured a new resource for the her school: she won a $5,000 tree planting grant from the Georgia Forestry Commission. After talking with GFC forester Beryl Budd, Lindsey decided to apply for the grant hoping to gain more shade for the school grounds and provide new educational tools for students.

The Georgia Forestry Commission has provided this grant since 2005, and since awarded it to more than a dozen schools throughout Georgia.

Over the holiday break, volunteers from school staff, parents, city and county workers, the Service Guild of Covington, and Hands on Newton, all banded together to install 40 new trees. Species include a variety of oaks, maples, myrtle, cherry and elm trees. The diverse mix will produce an array of colors and blooms, with a mature canopy height of 60 to 80 feet.

Lindsey is looking forward to a cooler playground. The equipment sometimes gets so hot that the school has actually closed the playground down in August.

The City of Mansfield also installed a new water line so the school would be able to water the new trees.

2008 Tree Season in 40 Seconds

2008-12-31T10:31:00.000-08:00

Norwegian photographer Eirik Solheim:

...I started shooting images...from the same spot each time, but not through my window. I found a spot outside that gave more or less the same framing each time I placed my camera. So, I went out on our balcony snapping some images at pretty irregular intervals all through 2008 .

One year in 40 seconds from Eirik Solheim on Vimeo.

Marietta Initiates Long-awaited Tree Planting

2008-11-07T13:29:00.000-08:00

The City of Marietta has begun the first phase of its 500 tree planting project. This week alone, 230 trees were installed in the downtown district of the Cobb County seat. Marietta's tree committee, city staff, and some outside experts banded together to determine where the trees would be planted.

The city identified approximately 10 general locations in Marietta that were lacking in adequate canopy cover.

The current plantings are part of a greater master plan the city and community developed two years ago. The master plan targets the main entrance corridors to Marietta, such as the 120 loop where there aren't many existing trees in proximity to the road. The second phase includes installing replacement trees where there are already over-mature trees, such as Church and Cherokee streets, and Kennesaw Avenue.

The city was ready to move forward two years ago, but with the rain deficit and waning water resources Marietta officials decided to wait until the region's rainfall stabilized somewhat. To ensure that supplemental water is available the city will reuse rainwater collected off rooftops of city-owned buildings.

Readers Vote Hickory Trees for Best Atlanta Fall Color

2008-10-30T10:47:00.000-07:00

Our poll ends with Hickory receiving the most votes for best fall color in Atlanta. Second place is awarded to Sugar maples for their yellow and orange displays. Red maple came in third, noted for its variety of reds, purples, and golds.

Fall Linkfest

2008-10-24T03:57:00.000-07:00

Stoke up your outdoor experience with these autumnal tree links

Planting is the most rewarding time to plant trees, and these guys agree with me:

• Augusta Chronicle planting article
• Bill Lamson-Scribner of the Charleston Courier - article meanders a bit, just read the last paragraph
• Lee Reisch at the Hickory Record.
• Even the Canadians agree.

Walter Reeves answers a question about planting Japanese maple seeds.

Fall color is soon to reach its peak here in Atlanta, judging from this article at The Franklin Press Online (NC).

Tree Maintenance Workshop Announced

2008-10-06T12:47:00.001-07:00

The Georgia Arborist Association has announced a new workshop for municipal government staff: Tree Maintenance for Local Governments. The course will be taught by Connie Head of Technical Forestry Services, and is scheduled for Friday, October 24, 2008.

This offering will be for municipal staff only. Topics will include: Tree Biology, Tree Protection, Pruning, Tree Planting, and basic hazard evaluation. Lunch included!

Venue:

White Oak Park, Dallas GA
9:30 AM to 3:00 PM

Contact the GAA for more information or call 770-749-0444.

How to Identify Georgia Trees (What Kind of Tree is THAT?)

2008-10-03T05:07:00.000-07:00

Puzzled by the staggering legions of oaks, hickories, and little shrubby things in Atlanta's forests, nature enthusiasts and professional arborists alike have been caught more than once scratching heads and cramping necks in an attempt to identify a favorite tree.

Trees of Georgia and Adjacent States, by Brown and Kirkman, has been helping would-be-dendrologists solve this problem for decades. It is a well researched, crisp tome, that is also easily digested. The book succeeds because it has one major goal: to serve as a resource in identifying the species of native trees and woody plants in Georgia and the Southeastern US.

Special features of the book:

• Dichotomous key (although it is worded a bit too concisely)
• Winter key to flowering trees
• Leaf, leaf scar, bud, flower and fruit diagrams
• Color photographs of leaves, flowers, fruit, and bark
• Tree descriptions
• Explanations of the difficulties in specific species recognition (is it Black willow or Coastal plain Willow?)
• Range maps

Trees Squelch Bad Odors

2008-10-01T08:03:00.000-07:00

New research shows that trees can reduce emissions of dust, ammonia, and odors near poultry farms. In some cases, the emissions were cut by almost half.

The study was presented at the 236th National Meeting of the American Chemical Society (ACS).

The report suggests that planting vegetation could reduce ammonia and particulates that degrade air and water quality. Research began in 2000, when residents near poultry farms in Maryland and Virginia complained about nasty odors from chicken houses. The research lead, Dr. George W. Malone of the University of Delaware said "We were aware of the concerns locally. We looked at what we could do to address them and the whole area of air quality as it relates to the emission of ammonia from poultry houses."

Researchers proposed planting trees to serve as a filter. In this six-year study, Malone found that a three-row plot of trees of various species and sizes reduced total dust by 56%, ammonia 53%, and odor 18%.

Not all trees function the same. In the Delaware area, Malone recommends the first row of trees be either a deciduous tree or one with a waxy leaf, and the other two rows be an evergreen.

The trees also improve water quality around farms because they can filter pollutants from soil and groundwater.

American Chemical Society (2008, August 22). Trees Kill Odors And Other Emissions From Poultry Farms. ScienceDaily. Retrieved October 1, 2008, from http://www.sciencedaily.com/releases/2008/08/080820163010.htm

Linkfest - grab bag

2008-09-15T04:52:00.000-07:00

I found these links while "Stumbling" today:

ScienceRay posted a quick primer on leaf physiology. The science part is not nearly as interesting as the photography.

As fall approaches, many shade trees begin to produce their mature fruit. Local Ecologist hasn't forgotten the Ginkgo.

Sweet, sweet imagery from John P Sercel.

Mountain Park Proposes New Tree Ordinance

2008-08-29T13:20:00.000-07:00

Google just sent me this tip, but it looks like the proposed tree ordinance for the City of Mountain Park was posted way back in April 2008. Mountain Park has an html version on their website.

Reading through the ordinance text it appears that the criteria for specimen trees is based on the City of Alpharetta's tree ordinance.

The proposed ordinance requires that a minimum tree density be retained on residential sites following tree removal activities. Density minimums are an un-grandfathered 400 inches per acre. I also found an unusual component stating that it is a violation to "Attach any sign, notice or other object to any tree or fasten any wires, cables, nails or screws to any tree in a manner that could prove harmful to the tree, except as necessary in conjunction with activities in the public interest."

The penalties section is interesting too. Illegal removal of, or damage to, specimen trees requires replacement equal to five times the value in inches.

President Carter's Home Damaged by Tree

2008-08-26T08:30:00.000-07:00

Wind and rain related to Tropical Storm Fay may have contributed to the failure of a large oak that crashed into the Plains home of former President Jimmy Carter. The incident occurred Saturday night.

Carter's son, Jeff, told the AJC that the tree fell into the house just above the living room. Jimmy and Rosalynn Carter were at home at the time. No personal injuries were reported.

Webs in Tree - Its Time For Fall Webworms

2008-08-20T04:03:00.000-07:00

I'm getting reports from farther south that fall webworms are active in their favorite trees: Pecans.

Hyphantria cunea is not particularly damaging to trees, but the webs are considered unsightly in the landscape. The insect is a leaf-feeder and does not directly injur other parts of the host plant. I don't recommend any treatment. By the time the webs are noticed, the caterpillars probably have had their fill of leaves.

Other trees considered delicious are persimmon, black cherry, Yoshino cherry, sourwood, sweetgum, willow, and red mulberry.

Linkfest - big trees

2008-08-08T05:53:00.000-07:00

Today's links fall under the category of largest mass - whatever that means.

• ScienceRay posts 11 More Spectacular Trees From Around the World. The last tree on the page he names the "Square Knot Tree," but it's actually a Granny knot.

• The California Register of Big Trees is a chart with factual information about individual specimens growing on the left coast.

• Similar to the above link, American Forests publishes a national register of big trees.

• Georgia has its own registry, but there are no photographs online.

• Big Trees Forest Preserve is located in Sandy Springs, Georgia. It does in fact have big trees, but they aren't the largest.

Top 10 Trees - Know Them or Suffer

2008-07-27T17:54:00.000-07:00

The late Dr. Shigo once professed to me "If you want to be an expert, find the 10 most common trees that grow in your region and get to know them. Really, really, get to know them." Being a smart-aleck I asked him if this was some kind of contest or something. Having no sense of humor for my shenanigans, Dr. Shigo explained that I should make a list of the most common trees on my customer's properties and get to work at discovering what makes these trees tick.

So here is my top 10 for the Atlanta region:

Tulip poplar

Sweetgum

Water oak

Willow oak

White oak

Southern red oak

Post oak

Red maple

Flowering dogwood

Loblolly pine

What trees would you add to the list? What trees would you subtract?

Live Oak - a forgotten Atlanta landscape tree

2008-07-18T11:31:00.000-07:00

Though it is the colossus that shades the streets of Savannah and is the state tree of Georgia, the Live oak Quercus virginiana continues to be overlooked as a potential landscape or specimen tree in Atlanta. Live oaks embody many of the sentimental qualities that are often associated with a southern oak: expansive, rich with character, and hauntingly lyrical with tales to tell of children and families meeting beneath the shadow if its weathered limbs.

Its popular detraction is also its greatest asset. Slow growing, but conservative.

Yet given the right conditions of bright sunlight, moisture, and well-drained soil, this tree is moderately, even fast-growing, in youth. Over time, this tree can outperform and outlive some of the more cosmopolitan oaks such as Willow oak and the newest urban dweller Nuttall oak.

It is a recommended southern landscape tree by Michael Dirr.

And the winner is... (Guess the Tree's Age contest)

2008-07-14T14:17:00.001-07:00

Congratulations to Nonot, who's estimate came the closest in May's contest. The Scarlet oak, located just a few miles north of Atlanta, is 42 years old this year.

Here is the story of the tree, as told by the woman standing next to the oak:

When Fulton County installed the sewer line my children told me to come down and look at the creek where they cut down all the trees. When I walked down there I saw this tree that had been pushed over but the bark wasn't skinned off of it so I dug it up and brought it home and planted it and the other one over there.

My neighbors made fun of me and wanted to know why I planted a switch in my front yard. When I planted it, I could reach around it with my thumb and finger like this: [overlapped at first knuckles]

So we estimated the tree was about 3 years old when she planted it. That was 39 years ago!

tim the shrubber came close, with his guess of 39 years old, which is the age when it was planted. Randy gets special mention for several stabs, but never really making an exact guess...and 'anonymous' and 'Steve Pettis' were the closest in accuracy.

Thanks for playing!

Some Tree Species are Exempt in Atlanta Tree Ordinance

2008-07-07T13:41:00.000-07:00

Here is a neat little Atlanta Tree Ordinance hack of which you may not be aware.

Most people know, to remove any healthy tree 6 inches or greater in diameter requires cash recompense be paid to the city (or tree replacement), along with a city-approved tree removal permit. Fewer people know that the minimum size for pines is 12 inches in diameter. But what most residents don't know is that there are several tree species that are considered so heinous, so undesirable, so horrid...that they do not require paid recompense, replacement or posting.

And they are:

• Mimosa Albizia julibrissin
• Tree of heaven Ailanthus altissima
• White mulberry Morus alba
• Paper mulberry Broussonetia papyrifera
• Chinaberry Melia azederach
• Princess tree Paulownia tomentosa
• Carolina cherry laurel Prunus caroliniana
• Bradford Pear Pyrus calleryana
• Leyland cypress Cupressocyparis leylandii -x

In addition, if any of these species are over 12 inches in diameter, they are still exempt as long as the subject property meets the required tree coverage for its respective zoning class. If there is not enough canopy coverage, the permit applicant must replace enough tree coverage to satisfy the zoning requirements.

Quick Links for Tree Aficionados

2008-06-20T12:25:00.001-07:00

I couldn't pass this link without sharing it with my readership. Its certainly not definitive, but fun nonetheless.

Magnificent Trees of the World

If you like wallpapers and trees, but haven't been able to reconcile the two, try nature wallpapers.

ScienceNews Erroneously Reports Germination of a 2000 Year Old Tree Seed

2008-06-13T09:53:00.000-07:00

ScienceNews.org reported on Thursday that Israeli botanists helped Bar-Ilan University germinate a 2,000 year old date palm seed. The seed was part of an archeological collection, discovered when excavations in the ’60s uncovered five date pits in the Dead Sea region of Israel at Masada. The age of the seed was theorized through calibrated radiocarbon dating.

The erroneous reporting came through the term "tree" and "sapling," when ScienceNews incorrectly classified the ancient plant as a tree. Palms are not trees. They are monocots, being more closely related to a grass. Totally different.

Full story...

Storms Cause Scattered Tree Damage

2008-06-13T09:26:00.000-07:00

Trees came down across several roads in the spotty Wednesday night storms across Atlanta metro. Although lightning was the cause of several power outages and an apartment fire, WXIA reported two arboreral incidents: a tree along Beckwith Street near the Atlanta University Center fell and landed on a car, and a huge tree limb near Glenwood Avenue came down and blocked the street.

Neither tree was a pine, of course. How is that possible?

Tree Reading for this Week

2008-06-07T09:34:00.000-07:00

Treeconomics
Here is a great article about Greg McPherson, a project leader for the USDA Forest Service. It discusses Greg's recent experiences in urban tree research. Climate change ranting is kept to a minimum. Some of the highlights:

- Greg's research relies on systematic cost-benefit models [Persuasive!].
- Planting tree varieties that require little irrigation will generate benefits many times the initial investment.
- Tree planting efforts should not focus on the number of trees, as this can lead to putting trees in the wrong place. Maximally functional canopy is much more important.

He also reveals some of the more practical benefits of urban tree planting, in addition to the usual ho-hum carbon sequestration and property value figures. Read the full story...PDF

The Greening of America
This Washington Post article investigates the difficulties of finding planting spots for trees in dense urban areas. Full story...

On the flip side
There are well-researched methodologies for uncovering the potential spots for reforestation in urban areas. The paper...PDF

Blueberries are ready for picking. NOW.

2008-06-04T14:00:00.000-07:00

The weather has been sweetly perfect for berries this year, and Tree News just received a tip. The Thoms family farm in Griffin is ready to unleash blueberry mania. We found the big, plump, early berries that everyone craves. The prices are the same as last year: you pick a gallon for $10.00. The place is the same, also: 175 Chappell Mill Rd Griffin, GA. Betsy Thoms recommends that you call 770-461-6013 for updates on blueberry availability.

This week they will be open for picking: June 9th Monday 6-8 pm; June 11 Wed. 9-11 am; June 12 Thursday 6-8 pm; June 14 Saturday 9-11 am.

Pass this information on to your friends and family, web pages, and any where else that you think folks might like non-chemically altered, fresh blueberries.

Remember these freeze well and easily. Don’t pre-wash the berries. Just put them on a cookie sheet in the freezer long enough to freeze the berries individually, then put them in freezer bags. You will be able to enjoy the berries all year.

We look forward to seeing you on the Thoms family farm!

Plants and Groundcovers for Shade

2008-05-27T04:53:00.000-07:00

Trees making it difficult to plant grass? Join the club. A love affair with big shady trees makes it frustrating to find sharp-looking plants and groundcovers that will thrive in the shade. It is one of the most often asked questions that my customers ask.

Try these on for shade...er, size:

• Southern shield fern Dryopteris ludoviciana
This deciduous native fern is tall -- it grows up to 4 feet with 1-foot wide fronds. This fern will tolerate more sun than most ferns, if moisture levels are adequate. Cut it back in August. Also known as a wood fern or Southern maiden fern.

• Spreading sword fern Nephrolepis cordifolia
Great ground cover for moist shade. Grows into spreading masses.

• Crested iris Iris cristata
A spreading evergreen that has pale flowers in spring, and of course, loves shade.

• Walking iris Neomarica gracilis
Prefers good morning sun with afternoon shade. Produces white blooms with yellow, blue and brown markings.

• Pigeonberry Rivina humilis
Produces small flowers and red berries. Good for growing under trees and tall shrubs. Likes moist, productive, and well-drained soil. Not good in droughts (oh well).

• "Katie's compact" ruellia Ruellia brittoniana "Katie's compact"
A top choice. Forms clumps with dark green foliage, and has purple flowers. Not particularly cold-hardy but will come back.

• Australian violet Viola hederacea
Evergreen and spreading. What else do you need?

• Creeping jenny Lysimachia nummularia
Especially good for areas that stay rather wet. Good for sun or shade. Has yellow flowers in summer.

• Ajuga Ajuga reptans
Fast growing and has dark blue flower stalks. Will grow in deep shade but requires decent drainage.

Not a comprehensive list, by any stretch. If you have a suggestion, share it with us by commenting below.

Special thanks to Landa Gay, from the Houston Chronicle and http://www.chron.com/houstongardening

GAA Announces "Hands-On" Ground Worker Training

2008-05-15T12:12:00.000-07:00

The Georgia Arborist Association is continuing their vision for high-quality training for the tree care industry. This particular seminar is designed for participation, meaning that a number of activities will actively engage each person in “doing” as opposed to “watching.”

The targeted number of instructors for each learning station is 2, creating a 5:1 instructor/student ratio. A Spanish translator will be available for each group of 10 Spanish speaking participants. A brief written test at the end of the seminar and certificates of completion will be awarded each participant. These subjects will be offered:

1. Electrical Hazards
2. Ground Safety
3. Ground Operations
4. Hazard Assessment
5. Knot Tying
6. Throw Line

Six I.S.A. Continuing Education Credits will be offered

Contact
Office: (770) 554-3735
Fax: (770) 554-2022
georgiaarborist@bellsouth.net
www.georgiaarborist.org

When
Saturday, May 31, 2008 from 8:00 AM to 5:00 PM

Where
United Methodist Children’s Home
500 S. Columbia Drive
Decatur, GA 30030

City of Milton Passes Tree Ordinance Resolution

2008-05-13T18:18:00.000-07:00

On May 6 the Milton City Council gave a nod to a future revision of the current Tree Conservation Ordinance.

When the City of Milton incorporated in late 2006, it adopted the Fulton County Tree Conservation Ordinance which was used in the area prior to the City's formation. Now, as the new city is maturing, council has approved a resolution to establish a citizens' participation group to revise or create a new Milton Tree Preservation Ordinance. The city of Sandy Springs, incorporated a year prior to Milton, successfully implemented a whole new ordinance in early 2007.

When a community decides to adopt a new or revised tree ordinance in Georgia, the creation of a citizen's participation group or task force is a common procedure in Georgia.

Guess the Tree's Age and Win!

2008-05-07T14:19:00.000-07:00

MikeB over at RegularDad gave me a great idea for this month's contest.

Can you correctly pin this tree's age?

Here is what you need to know:
• The tree is in the Red oak family, most likely a naturalized Scarlet oak hybrid.
• It is growing in the Atlanta area.
• The photographs were taken last week.

Make your guess by post a comment below. The person who comes the closest will receive a winner's link, with anchor text, to their blog or website of choice. Multiple winners are possible, so get at it!

Reader Speaks Out

2008-05-06T17:03:00.000-07:00

Today I was talking to Harefoot, a daily reader of Tree News. He was commenting on how much he enjoyed reading the articles, but he had one concern.

This is how the conversation went:

"I check your blog every day, but I've been a bit bored with it lately."

Really? Do you want more content...more posts...maybe another Tree Care Handbook?

"No. I'm bored from that insipid map of Atlanta quadrants."

Now it is true that the Arborist Quadrant Map does not exactly meet the quality control guidelines of Tree News. It is also true that this graphic element is a bit too dry for us drought-weary Georgians. But the map does clearly and succinctly illustrate the bold numbers 1, 2, 3 and 4.

Understand that Harefoot does not live in Atlanta and does not fully appreciate how exciting the organizational structure of the City Arborist Quadrants can be. So I politley laughed, gave an accepting nod, and quickly changed the subject.

City of Atlanta Updates its City Arborist List

2008-04-22T13:33:00.000-07:00

The Arborist Division of the Atlanta City Government regularly updates a list of their city Arborists. There are four municipal field personnel, each responsible for a quadrant. They are:

Area 1: Tom Coffin 404.330.6077
Area 2: Janell Bazile 404.330.6071
Area 3: Paul Lewkowicz 404.330.6882
Area 4: Michael Franklin 404.330.6079

For final inspections, contact Stanley Domengeaux 404.546.1047

The Arborist Division is esponsible for reviewing and approving all building permits and tree removal plans.

How To Measure the Height of a Tree

2008-04-18T08:17:00.000-07:00

On September 7, 2006 the San Francisco Chronicle reported that researchers had just discovered a 378 foot (113 meters) tall tree that is probably the world's tallest living tree. If you think you can find a tree that can break that record, or just want to measure that tree in your backyard, try these techniques. These methods can also give you a good approximation of the heights not only of trees, but also of telephone poles, buildings, magic beanstalks—pretty much anything tall.

Steps

Shadow Method

Know your exact height in the shoes you will be wearing to perform this method.
Stand next to the tree or the object to be measured. For best results, do this method on a bright, sunny day. If the sky is overcast, it may be difficult to tell exactly where the shadow’s tip is
Measure the length of your shadow. Use a tape measure or yardstick (meter ruler) to measure your shadow from your feet to the tip of your shadow. If you don’t have someone to assist you, you can mark the end of the shadow by tossing a rock onto it while you’re standing. Or better yet, place the rock anywhere on the ground, and then position yourself so the tip of your shadow is at the rock; then measure from where you're standing to the rock.
Measure the length of the tree’s shadow. Use your measuring tape to determine the length of the tree’s shadow from the base of the tree to the tip of the shadow. This works best if the ground all along the shadow is fairly level; if the tree is on a slope, for example, your measurement won’t be very accurate. You want to do this as quickly as possible after measuring your shadow, since the sun’s position in the sky (and hence the shadow length) is slowly but constantly changing. If you have an assistant, you can hold one end of the measuring tape while he or she measures the tree’s shadow, and then you can immediately measure your shadow.
Calculate the tree’s height by using the proportion of your shadow’s length to your height. Since you know the length of the tree’s shadow, and you also know that a certain height (your height) produces a certain shadow length (the length of your shadow), you can determine the tree’s height with a little math. Multiply the length of the tree’s shadow by your height, and then divide the resulting number by the length of your shadow. For example, if you are 5 feet (1.5 meters) tall, your shadow is 8 feet (2.4 meters) long, and the tree’s shadow is 100 feet (30.48 meters) long, the height of the tree is (100 x 5) / 8 = 62.5 feet (30.48 x 1.5 meters) / 2.4 meters. Note that the order of your multiplication does not matter.

Pencil Method: Requires an Assistant

Stand far enough from the tree so you can view the whole tree—top to bottom—without moving your head. For the most accurate measurement, you should stand so that you are on a piece of ground that is about level with the ground at the tree’s base. Your view of the tree should be as unobstructed as possible.
Have a friend stand near the tree.
Hold a pencil or a small, straight stick (such as a paint stick or ruler) in one hand and stretch your arm out so that the pencil is at arm’s length in front of you (between you and the tree).
Close one eye and adjust the pencil up or down so that you can sight the very top of the tree at the top of the pencil. This is easiest if you turn the pencil so that the sharpened point is pointing straight up. The tip of the pencil should thus just cover the top of the tree in your line of sight as you look at the tree “through” the pencil.
Move your thumb up or down the pencil so that the tip of your thumbnail is aligned with the tree’s base. While holding the pencil in position so that the tip is aligned with the tree’s top (as in step 3), move your thumb to the point on the pencil that covers the point (again, as you look “through” the pencil with one eye) where the tree meets the ground.
Rotate your arm so that the pencil is horizontal (parallel to the ground). Keep your arm held straight out, and make sure your thumbnail is still aligned with the tree’s base.
Have your friend move so that you can sight his or her feet “through” the point of your pencil. That is, your friend’s feet should be aligned with the pencil’s tip. He or she may need to move backward, sideways, or diagonally. Since, depending on the height of the tree, you may need to be some distance away from your friend, consider using hand signals (with the hand that is not holding the pencil) to tell him or her to go farther, come closer, or move to the left or right.
Measure the distance between your friend and the tree. Have your friend remain in the place or mark the spot with a stick or rock. Then use a measuring tape to measure the straight-line distance between that spot and the base of the tree. If you don’t have a measuring tape you can pace out the distance, although this will not be as accurate. The distance between your friend and the tree is the height of the tree.

Angle of Elevation Method

Measure the distance to a sighting position. Stand with your back to the tree and walk out to a point that is approximately level with the ground at the tree’s base and from which you can clearly see the tree’s top. Walk in a straight line, and use a measuring tape to measure your distance from the tree. You need not stand any set distance from the tree, but this method generally works best if your distance from the tree is about 1-1.5 times the height of the tree.
Measure the angle of elevation to the tree’s top. Sight the top of the tree and use a clinometer or transit to measure the "angle of elevation" between the tree and the ground. The angle of elevation is the angle formed between two lines—the flat plane of the ground and your sightline, to some elevated point (in this case, the tree’s top) — with you as the vertex of the angle.
Find the tangent of the angle of elevation. You can find the tangent of an angle using a calculator or table of trigonometric functions. The method for finding the tangent may differ depending on your calculator, but usually you just push the “TAN” button, enter the angle, and then press the “equal” button (=). Thus if the angle of elevation is 60 degrees, you simply push “TAN” and then enter “60” and then press the equal sign.
Multiply your distance from the tree (measured in step 1), by the tangent of the angle of elevation. The resulting number is the height of the tree minus your height.
Add your height to the height you calculated in the previous step. Now you have the height of the tree. You need to add your height because you measured the angle of elevation from eye level, not from the ground.

Fixed Angle of Elevation Method

Fold a square piece of paper in half so that it forms a triangle. The triangle will have one right (90 degree) angle and two 45 degree angles.
Hold the triangle near one eye so that the right angle faces away from you and one side is horizontal (parallel to the ground, assuming the ground is level).
Move back from the tree until you can sight the top of the tree at the top tip of the triangle. Close one eye to sight the tree’s top. You want to find the point where your line of sight follows the hypotenuse of the triangle to the very top of the tree.
Mark this spot and measure the distance from it to the base of the tree. This distance, plus your height(because you used the angle of elevation from eye level, not from the ground)is also the height of the tree. This works because the angle of elevation using your triangle is 45 degrees, and the tangent of 45 degrees = 1.

Tips

Realize that many times using DBH (diameter at breast height) is a more useful and much easier way of assessing a tree's size and age.
For increased accuracy using the shadow method you can measure the shadow cast by a yardstick or similar straight stick of known height instead of a person’s height. Depending on how you are standing, your height may vary (i.e., if you are slouching or tilting your head slightly).
You can improve the accuracy of the pencil method and the angle of elevation methods by taking several measurements from different points around the tree.
Be consistent with your units of measurement (multiply and divide feet by feet or inches by inches, for example.)
Clinometers and transits are tools which allow you to measure the angle between a horizontal plane and the object you are looking at (the transit, in particular, also is used to measure angles between vertical planes). You want to measure the angle between the ground and the tree’s top, but the clinometer or transit will measure the angle between the horizontal plane at your eye level (since you look through the instrument), and this is why you need to add your height to the calculation. Some clinometers and transits, however, allow you to adjust for your eye height. If you have already adjusted for your height do not add your height at the end of the calculation.
Many trees are not perfectly vertical—they don’t grow straight up. Using the angle of elevation methods you can adjust for an angled tree by measuring the distance between you and the point on the ground that lies directly below the tree’s top, rather than measuring the distance between you and the base of the tree.
You can make a simple clinometer very easily using a protractor. Check out the related wikiHow for instructions.
This can be a fun activity for 4th to 7th grade kids.

Things to Consider

These methods do not work well if the tree is on sloping ground.
While the angle of elevation methods, if used correctly, can calculate the correct height within 2-3 feet, there is abundant opportunity for human error, especially if the tree is angled or on a slope. If precision is absolutely necessary, consult your local extension service or other such agency for assistance.

Things You'll Need

A friend (optional for three of the methods, but a little help makes the process easier and more fun)
A pencil or ruler
A tape measure or yardstick/ meter ruler
A clinometer or square piece of paper

Sources and Citations

San Francisco Chronicle article on discovery of world's tallest tree
The Institute for Environmental Modeling—University of Tennessee Discussion of the use of right-triangle trigonometry in measuring trees
National Trust of Australia Instructions on how to take measurements of trees, including girth, spread, and height.
The Australian National University In-depth discussion of measuring trees, including use of specialized instruments and correcting for errors due to tree angle
Love2Learn (Blogspot.com) Reproduction of old children’s encyclopedia article on the shadow method
U.S. Forest Service Advanced article on how to use a percent clinometer
[1] CSGNetwork Tree Height Calculator

Article provided by wikiHow, a collaborative writing project to build the world's largest, highest quality how-to manual. Please edit this article and find author credits at the original wikiHow article on How to Measure the Height of a Tree. All content on wikiHow can be shared under a Creative Commons license.

Amazing Flowering Dogwood Tree is Now Historic

2008-04-09T13:19:00.000-07:00

Think you've seen some awesome Dogwoods? Try this one out. Athens, Georgia is home to a monster Cornus.

I first saw this specimen in 1996, when I was touring the Hospital grounds in preparation for some tree pruning. I remember thinking that it should be on some kind of "Big Tree List" or something, but I was too preoccupied (lazy) to do anything about it.

The Georgia Urban Forestry Council inducted the tree into its own Historic Tree Register this year. It is located directly beside Prince Avenue at Athens Regional Medical Center. It measures 24" inches in diameter at the base and it is in perfect condition. Next to the tree is a plaque noting its date of planting as 1951, by Charles L. Pope. The majority of the residents regard this tree as one of the largest Dogwood trees in the state of Georgia.

If you would like to write the tree a letter, its address is 1199 Prince Avenue, Athens GA. Or you can just take a trip and see it at Athens Regional Medical Center. Please observe regular visiting hours.

Tree Care Handbook Vol. 1, Flowering Dogwood

2008-04-03T11:59:00.000-07:00

Onebark Consulting Arborist has announced the pre-release of the Tree Care Handbook, Volume 1, first of a series of free technical manuals on the care of specific tree species. This particular release covers crucial instruction for the care of the Flowering dogwood Cornus florida.

How is this handbook different from other related articles? The Tree Care Handbook series contains aggregate information from treatises, US government publications, and forestry texts; and most importantly, draws upon the profound knowledge of experienced professional tree care practitioners.

The handbook series is designed to:

Weed out erroneous and generic advice from the art of tree care
Highlight best management practices for trees
Promote strong links between online tree care sources

Please come back and comment here after downloading the handbook. Feedback regarding the handbooks will be considered for future volume releases.

Download Tree Care Handbook Vol.1, Flowering Dogwood.

Bare Root Trees Are Easier Than You Think

2008-03-31T19:02:00.000-07:00

Planting bare root trees is a fun and economical way to have lush green trees on your property without the higher cost of purchasing established trees. Although it is not difficult to do, it is important to keep in mind some specific guidelines in order maximize your chances for success. By following these easy steps, you can turn your brown thumb into a green thumb in no time.

Steps

Carefully unpack the bare root tree from the container or material it came in. Be careful not to damage any of the roots during the unpacking process.
Set the tree into a bucket filled with water. Allow the tree to soak for 4-6 hours prior to planting. This will allow the roots of the tree to soak up water and not dry out during the initial shock of planting.
Dig a hole slightly larger than the diameter and depth of the tree and soil width. For example, if the tree roots and soil are 50 cm /19.6" wide, dig a hole 60 cm /23.6" wide to allow for maximum root spread.
Check to be sure there are no large weed roots in the hole you have dug. If these are left there, they will compete with the new tree and might restrict its growth.
Plant the tree so that where the roots meet the base of the tree. This is known as the "root collar" and it should be level with the ground. Placing dirt around the tree trunk above the root ball will cause the tree to grow in a way that will make it likely to fall over prematurely.
Shovel the remaining dirt from the container. Add more if necessary into the hole, taking care to pack the soil firmly around the tree.
Build a water basin around the outside of the tree. Give the tree plenty of water.
Add a mulch area of a metre /5.4 yards wide and 5 cm / 1.9" deep around the tree base. Be sure not to let the mulch touch the tree itself.
Water the tree again and again. Water it every two weeks, throughout its first summer.
Stake large trees. If the tree is fairly large, it will need to be staked for a year. Hammer a metre-long (39") stake into the ground before planting the tree, at a 45 degree angle and for three quarters of its length, in a position so that the top of the stake is above where the tree is being planted. Then tie the tree stem to the stake with a rubber tree tie.
Remove the stake after a year. After one year, the tree should be securely rooted, and the stake will hinder the tree's future growth. Remove the rubber tree tie, and saw off the stake at soil level. Be careful not to injure the young tree accidentally with the saw.

Tips

Try to gently loosen the roots of the tree a little bit before planting the tree. Roots that are constricted do not grow as well and are not able to provide as much water to the tree, something that is critical especially during the critical time the tree is first planted.

Warnings

Be sure not to wait more than a day or two to put a bare root tree into the ground after purchase. If the bare root tree is not planted in time, there is a chance it can dry out the roots and kill the tree. If you can't plant it right away, cover the roots fully with wet sand or soil as a temporary measure.

Things You'll Need

A shovel
Some mulch
A watering can or hose
Soil
A bucket

Article provided by wikiHow, a collaborative writing project to build the world's largest, highest quality how-to manual. Please edit this article and find author credits at the original wikiHow article on How to Plant a Bare Root Tree. All content on wikiHow can be shared under a Creative Commons license.

Cherry Trees in Atlanta Make a Superior Showing

2008-03-27T13:59:00.000-07:00

After a dry and dull 2007, it looks as if this year's growing season is commencing with a grand fireworks display. Yoshino Cherry trees are blooming in one of the fullest and consistent displays in recent memory. Just about any asian cherry cultivar or hybrid is glaringly obvious right now. Even the sides of normally drab highway buffers are sprinkled with lavender and nearly-white flowers.

The Yoshino Cherry is the famous tree species in Washington DC, common on US Capitol grounds and around the Library of Congress. In 1909 and again in 1912, the city of Tokyo sent thousands of Japanese cherries to Washington. It is known as Somei-yoshino in Japan, a hybrid of unknown origin that was first introduced in Tokyo in 1872.

Atlanta blogger Judi has a weeping cherry ornamental that is in the spirit too.

Pine Tree Looses Needles Early; An Apparent Impostor

2008-03-23T16:38:00.000-07:00

In the late 1990's, upscale neighborhoods in the urban center of Atlanta began to treat their cell towers to a bit of camouflage. Imitation needles and branches were affixed to lifeless metal poles. One of the first towers to become 'green' was located at near the intersection of Briarcliff and North Druid Hills Roads. So realistic were the well fashioned duds, that commuters exclaimed that they never realized that such a big Pine tree sprouted up behind the Burger King.

Now, almost 10 years later, it appears that the tree has dropped its drawers prematurely. Exposed for the sham that it is, this is one Pine that now needs a little dressing up again. Or have the Pine beetles become just a bit too aggressive?

White Blooms in Atlanta

2008-03-21T05:12:00.001-07:00

For those searching for information on white blooming trees in Atlanta, there are several showy woody plants that are flowering right now:

Bradford pear trees are finishing, and now starting to push their leaves.
Wild pears are still flowering.
Dogwood trees are beginning to open up their flower buds, but this will take at least two weeks to get going
Star magnolias are finishing up.
White flowering cherry trees are just starting to open their flower buds.

Tornado Appears, Damages Trees, and Leaves

2008-03-15T06:03:00.000-07:00

A tornado touched down in downtown Atlanta, sometime between 9:30 and 10 PM, Friday night. As the city's residents go outside this morning to examine what happened, they may find that their beloved trees have been damaged or even toppled. So far the blogs and news sources are reporting that many trees came down onto houses and cars.

Like the tornado of 1998, north of Atlanta in Dunwoody, trees will need to be cleared from roads and taken off houses over the next few weeks. Many more trees, that are still standing, have suffered partial or non-catastrophic damage. All tree owners should take the time over the next week to examine their trees for the following:

- A new, or aggravated, lean
- Broken, hanging branches teetering in the tree canopy
- Large cracked limbs still attached to the trunk
- Broken roots near the soil surface
- Heaving or mounding soil near the base of the tree

If there is any question as to whether these failures are hazardous, a qualified tree risk assessor should be contacted to inspect the storm damage. Most practicing certified arborists can make a good call in these cases. Tree consultants at Onebark specialize in storm damage assessments. Member companies of the Georgia Arborist Association are a good resource for tree restoration services.

Trees that pose an imminent danger to people and essential property are always a priority for cleanup, and most tree services will be concentrating on making things safe, rather than cleaning up messes. Tree services have many customers that rely on them in emergencies. Those who have debris in their yard or that need branches pruned over low-use areas will usually be low on the priority list. If you have low-priority tree damage, be patient! It will all get cleaned up soon.

Pear Tree, Part 1

2008-03-09T16:04:00.000-07:00

My son and I have been watching a Kieffer Pear tree around the 'hood. In a previous article I mentioned that this tree was to be our subject of study this year. The tree's buds have erupted.

The sepals and flower petals are clearly visible.

A few young leaves can be seen as well.

The creamy white color of the petals will develop within the next few days.

Greenspade Shovels Up Some Unique Information

2008-03-07T13:21:00.000-08:00

Greenspade, a horticultural and tree blog, deserves a look. Although the author is not local, Atlanta tree enthusiasts will find the site interesting. The author, Chris Welch, puts a new twist on blog presentation by organizing article titles as horticultural definitions. If my explanation leaves you puzzled, then visit Greenspade and check out the format. The photography is very good. Graphic elements are pleasing.

Chris is an ISA Certified Arborist and urban horticulturalist.

Trees Fall, Drought Blamed Yet Again

2008-03-06T06:06:00.000-08:00

The flurry of storm activity over the past week has focused attention on big trees - especially the trees that have fallen. News outlets have produced a stream of reports mentioning the damage caused by tree failures. The AJC, WDUN, The West Georgian, WXIA, and WGCL, all ran mainstream stories just in the past few days.

Because the drought is still in people's minds, it has become a catchall scapegoat for a number of tree-related problems. It is easy for people to grasp for a connection between drought stress and trees falling, but it is somewhat rash to do so without fully analyzing each case. Catastrophic tree failure is an event that involves the interaction of forces upon a very complex tree system. There are few resources and tools available to diagnose drought-related failures.

Of the catastrophic failures that I have recently observed in Atlanta, drought has not been the primary or secondary cause. Rather, each case involved serious structural problems such as decay. These problems predated the drought by many years.

Quick diagnoses of 'drought stress' will only confuse homeowners and could lead to poor and expensive decisions. Comprehensive evaluation of large trees is recommended prior to removal, and only by a person fully qualified in tree risk assessment. Hopefully, mass tree removal will not become the solution of choice.

February is a Time to Teach

2008-02-19T11:31:00.000-08:00

This year, I have decided to teach my son the complete seasonal cycle of a tree. I picked a fruit tree for the following reasons:

- Fruit trees bloom early
- They set a tangible, recognizable fruit
- The qualities of the tree will stimulate the senses: smell, taste, touch

The victim, er uh, subject, is a lone Kieffer Pear at the bottom of a short road embankment near our neighborhood. The tree is in the street right-of-way, making the pear a 'public' tree. We don't want to be trespassing, now, do we? Since we roll by the tree regularly on both walks and drives, my son and I will be able to monitor the tree as it blooms, breaks leaves, produces fruit, and turns color. The grand climax, of course, will be picking some pears and feasting on the fruits of the tree's labor.

Creating an extended relationship between a student and his subject of study is one of the most effective and exciting teaching methods. It is far better than the typical institutional model, where a kid's exposure to outdoor plants and trees consists of a few crammed field trips to an urban nature center.

Tree Climbing Championship Draws Near

2008-02-12T07:35:00.000-08:00

Registration for the 11th Annual 2008 Georgia Arborist Association Tree Climbing Championship is filling up fast. The event, to be held Saturday, March 1, is at:

The United Methodist Children’s Home
500 South Columbia Drive
Decatur, GA 30030

As always, admission to the event is free and the public is encouraged to come and experience the thrill of competitive tree climbing. These types of events are a great way to see the skill and professionalism required in tree work.

There will be sponsors and prizes for the event. Companies such as Vermeer, Premier Tree Care, Davey, Bartlett, Stihl, American Chainsaw, Rayfield Tree Care, Bishop co., and Baileys have either donated resources or have offered valable prizes to the contestants. Anyone interested in sponsoring or donating can do so online at the GAA website.

Much preparation of the event site is required. Trees need to be pruned, blocks set in trees, ropes run, and competition areas delineated. Anyone interested to volunteer for the Site Prep Day should block out time on February 23.

Potential competitors, sponsors, and volunteers can register online.

Questions or concerns about the events and activities, can contact Executive Director Donna Rayfield at 770-554-3735.

Trees Recommended for Screening

2008-02-08T06:33:00.000-08:00

Erica Glasener is recommending the perfect trees for screening in the Atlanta area. As homes get larger and lot sizes seem to shrink, there is less space between houses to plant. Glasener, writing in an article published today in the Atlanta Journal Constitution, recommends some unusual exciting varieties and some old favorites that will work in small and medium-sized landscapes. Her hot list of trees includes:

'Little Gem' Magnolia
'Bright N Tight' Cherry laurel
Hinoki cypress
Italian cypress

For smaller, narrow spaces, Glasener recommends:

'Stricta' Norway spruce
'Sky Rocket' Rocky Mountain juniper
'Fastigia' Japanese plum yew
'Sky Pencil' Holly
Bamboo planted in large pots (to avoid spreading)

Deciduous trees are often forgotten. Varieties of European Hornbeam and European Beech, closely spaced, make dandy lattice-like barriers in the winter, and transform into dense walls in the summer. For the full article, go to ajc.com

Imagine That! Readers Prefer Big Trees

2007-12-01T16:15:00.000-08:00

The results of the latest poll are in. Readers of Tree News were asked, "What kind of landscape do you prefer around your house?"

51% of respondents prefer as many big shade trees as possible

39% of respondents prefer one or two shade trees and some small ornamentals

3% of respondents apparently live in a desert

None of the respondents prefer only small ornamental trees in their landscape, and none of the respondents prefer that trees just go away and stay in the forest.

It makes sense that a majority of our readers love shade trees. What's remarkable, is that a small percentage reported living in a desert. It is likely that some of these readers were just being silly when they indicated this preference; however after studying the geographic locations of our growing readership, I can see how many may simply live in arid places - Portugal, Persia, etc.

Great Fall Color for Trees is not Surprising

2007-11-04T17:44:00.001-08:00

Once again the experts got it wrong. Fall color doom sayers were fueling the fire of arboreal panic earlier this year, looking into their silvicultural crystal balls and predicting a disappointing season for leaf viewing aficionados. The drought, the regional 'experts' said, would cause trees to shorten their color display and bring fall senescence much earlier than usual. Of course, that hasn't happened.

The fall color around town is actually rather good. In fact, this fall seems to be unusually long. In previous years, even those with adequate rainfall, leaves have tended to fall much quicker. For example, by the end of November in zones 7 and 8, Tulip poplar Liriodendron tulipifera has all but completely dropped its leaves. But that just isn't the case in 2007. Zelkova trees have been showing great uniform color in parking lot islands. Red maple trees have been more colorful, on average, than recent years. Sweetgums are holding on to their leaves and are just now showing reds and purples.

Why our drought has caused normally knowledgeable people to fall off the cart and predict the unpredictable is baffling. Water availability is, at best, a tiny consideration when it comes to fall leaf color. Fall color is governed by the differential between day and nighttime temperatures, and the presence of pigments in the tree leaf. Anthocyanins, the pigment that produces red in the tree leaf, can actually be heightened by poor soil and deficits of nitrogen.

Fall leaf color is not a survival function of the tree. It is simply a visual artifact during the leaf shedding process, as chlorophyll disappears at the end of the growing season.

Coweta County Adopts Tree Ordinance, Hires Full-time Arborist

2007-10-12T14:14:00.000-07:00

Coweta County is the newest municipality in Georgia to adopt a tree ordinance. The ordinance, which passed earlier this Spring, made way for a new position in Coweta government: County Arborist.

Just a little over a month ago, Roy Matthews took the helm. Roy has a strong background in both arboriculture and urban forestry. As graduate of Bowling Green State University, he began his municipal career as a City Forester for Sandusky, Ohio, a tree maintenance supervisor for Savannah, GA, a Superintendent of Parks and Grounds for the City of Beaufort, SC, Grounds Supervisor for the City of College Park, and Superintendent of Grounds at Fort_McPherson/Fort Gillem.

I spoke to Roy Matthews over the phone, and asked him what he thought the main impetus was for the county to adopt a tree ordinance. "The primary concern was the rapid development of County," Roy commented, "There is no slowing of growth here, and there needed to be something to help conserve urban forest resources."

Roy holds the ISA Certified Arborist credential. He is also a member of the ISA, Georgia Arborist Association, and Georgia Urban Forestry Council. Some of his goals include the development of educational tree preservation workshops in Coweta County and the creation of constructive relationships with the land development community.

His favorite tree is the American beech.

The Coweta Tree Ordinance is similar to the Fulton County tree ordinance and several of the county ordinances around the metro area, focusing primarily on new development and not individual established residential lots. It has a Specimen Tree component, which should be familiar to all Atlanta residents, providing special status to mature hardwood trees over 24 inches in diameter on new developments.

Persimmon Trees Go Nuts

2007-10-02T17:54:00.000-07:00

This is an amazing year for Persimmon fruit!

The best place to find them is along roadsides, especially near the south facing suburban and rural wooded edges.

Go ahead and try one, it will be delicious right about now.

Trees Sandy Springs

2007-09-12T09:10:00.000-07:00

A citizen group, patterned after the highly successful and popular Trees Atlanta, has emerged in the City of Sandy Springs. Trees Sandy Springs appears to have launched in late August. The group is spearheaded by Sandy Springs resident Nina Cramer.

The group is currently involved with volunteer work projects to water and mulch young community trees in the Main Street district and at schools. Trees Sandy Springs will have a volunteer recruitment drive at the Sandy Springs Festival on September 15 and 16.

Georgia Pecan trees to excel this year

2007-08-29T06:52:00.000-07:00

Even though Georgia suffered a late freeze and a record drought in 2007, the state's Pecan trees are set to produce one of the best crops of nuts in recent history. The UGA Cooperative extension service estimates that our beloved Carya illinoensis will provide 90 million to 95 million pounds of pecans this season.

Earlier this year, many Pecans in the central and eastern part of the state sustained damage from the frost, but apparently most trees recovered and have set a bumper crop of nuts. Growers estimate that the 2007 crop will be double that of last year's pitiful crop, which was one of the state's lowest in pecan production.

The current drought conditions are damaging; but have had an unexpected consequence: the drought has kept insects and diseases from ruining the Pecan nuts. Aphids, mites, and scab are common pests of Pecan trees. In addition, farmers have had the rare option of spraying less chemical controls such as insecticides and fungicides. In some cases, farmers have sprayed half as much pesticides as they usually do.

Grant available to improve Atlanta commnuity parks

2007-08-23T13:45:00.000-07:00

Park Pride is accepting applications for its Community Micro-Grants Program. The program provides City of Atlanta communities matching grants of up to $500 for public greenspace improvement projects.

Since the program’s inception last fall, Park Pride has awarded 45 grants ranging from $150-$500 to community groups in neighborhoods throughout Atlanta. Examples of worthwhile projects: building a new playground, creation of a nature trail, park beautification, and the addition of amenities such as picnic tables and flower beds.

Neighborhood groups need to submit proposals to their Neighborhood Planning Unit (NPU). The NPU then reviews proposals and recommends the award of a Park Pride micro-grant. Each of the City’s 24 NPUs may recommend grants totaling $500 for projects within their jurisdiction.

The Park Pride Micro-Grant application deadline is September 30th. Awards will be announced October 15th. For questions call Allison Barnett at (404) 817-6760.

Mystery Peach Tree Revealed

2007-08-19T19:37:00.000-07:00

Rosalind Bentley, writing for the Atlanta Journal Constitution, has gone public with a little-known tree mystery. Her August 10 article revealed the location of a desparate Prunus persica growing near the intersection of Peachtree Hills Avenue and Peachtree Street.

Peach trees, keeping with the trend of confusing street names, are altogether rare along Peachtree Street. This tree appears by all counts a naturalized specimen, possibly sprouted years ago from a peach pit! And I thought Atlanta was only populated with transplants.

Read the entire article at the AJC.

Georgia Arborist Association rockets ahead with $10K Grant

2007-07-13T14:31:00.000-07:00

For the second year, a $10,000 Urban Forestry Grant has been awarded to the GAA by the Georgia Forestry Commission's Urban & Community Forestry Grant Program.

This grant will enable the GAA to retain it's current Executive Director, Donna Rayfield. Our Executive Director was originally hired on October 12, 2006 and serves on a part-time basis. She manages the day to day operations of the GAA including maintaining the GAA website, making arrangements for GAA meetings and workshops, and membership recruitment.

GUFC to present "Trees & Utilities" program Aug. 9

2007-07-05T06:18:00.000-07:00

Join the Georgia Urban Forest Council on August 9th, 10 a.m. to 2 p.m, at the Gwinnett Environmental and Heritage Center, located at 2020 Clean Water Drive, Buford, Georgia, for their 3rd quarter meeting and training session. DeKalb County Arborist India Shahid will facilitate a panel discussion featuring Jimmy Etheridge of the Georgia Transmission Corporation, Scott Souder and Susan Avent of the Georgia Power Company, and Hugh Tyer, a utility arborist consultant.

Also featured on the program will be a brief talk on the green design elements of the center by Gwinnett Environmental and Heritage Center's Sheila Fowler, and an outdoor tour by a representative from the Jaeger Company of their award-winning landscape design. There will also be time for a self-guided tour of the exhibits. And, for those interested, there will be a ramble on the shady trails immediately following the program.

The Gwinnett Environmental and Heritage Center is a unique building designed by Lord, Aeck & Sargent using the latest in green design. The design for the 233-acre campus was provided by the Jaeger Company, who won an Award of Excellence from the Georgia Chapter of the American Society of Landscape Architects for their work. This project also earned LEED certification and features land conservation, preservation of a natural setting, pervious paving, bio-retention areas, rain gardens, constructed wetlands, native plant materials and more.

Lunch will be provided. To register, download a PDF form, or call 800-994-4832.

Atlanta Drought is Trial by Fire for Trees

2007-06-27T13:38:00.001-07:00

After months of little rain, trees around the Atlanta area are beginning to look a little parched.

The weakest trees are the ones that succumb to moisture stress first. Sometimes its the trees that have been damaged from soil disturbance, such as on construction sites or even on lawns that have been over-manicured. Construction sites may have compacted soil that drives out pore space in the soil. Over manicured lawns may have been over-watered in the past or been graded by machinery that destroyed fine roots in the upper strata of the soil profile.

Trees growing in regions that are already dry may be on the edge of critical moisture stress. A casual drive through south DeKalb County reveals Loblolly pines dying on the rock outcrops. These trees functioned under normal rainfall conditions, but this year has been especially hard on them. Perhaps, the stronger trees will re-populate the area.

Once called "The most massive and longest lived organisms on Earth" by the late Alex Shigo, mature trees require an enormous amount of moisture to sustain them. As the rain deficit languishes, it is the strongest and most resourceful of the trees that thrive and continue to grow through out the season. How can a tree, when grass and small plants around it die, still manage to carry on under such strenuous conditions?

Well-established trees have a root system that is astoundingly large. A tree's root system is not just a bunch of woody fingers in the soil. It is a true system, having many parts that function as whole, to deliver the tiniest of water molecules the rest of the tree. These scraps of moisture are trapped in the soil, and can only be wrenched away by a sophisticated network of microscopic organisms that are attached to the finest of root hairs. Certain types of fungi become married to tree roots, and form whole new 'drinking' organs for the tree, called michorrhizae. Without a healthy population of micorrhizae, a tree could not survive.

The entire root network, including michorrhizae and other biological relationships, extend farther than the tree's branches and can comprise 2/3 of the entire tree mass.

Atlanta Council proposes significant change to tree ordinance

2007-06-24T17:33:00.000-07:00

On June 17, The Atlanta City Council made a striking modification the City's tree ordinance.

Property owners will now be allowed to remove any tree that is growing within 5 feet of a house or duplex, without recompense. A permit will still be required from the City Arborist Division prior to removal, and no other tree may be removed under the same provision for 5 years. Furthermore, the exemption does not apply if the tree contributes 10 percent or more of the total tree canopy over the lot.

Tree Climbing Competition Nears Deadline

2007-03-02T16:19:00.000-08:00

The Georgia Arborist Association's annual Tree Climbing Championship nears its registration deadline, as the Saturday, March 10 event draws close. Skilled tree climbers from all over the metro Atlanta area will compete in a full day of fun and activity at the United Methodist’s Children’s Home, located at 500 South Columbia Drive in Decatur. The event begins at 7:30 AM, and could last till 5:00 PM.

The event brings together tree climbing professionals, enthusiasts, and hobbyists for fellowship and friendly games. Contestants compete in five preliminary events to qualify as one of three finalists in the Masters Challenge championship. Preliminary events include: secured foot lock, belayed speed climb, aerial rescue, throw line, and work climb. The winner of the Masters challenge will be sponsored to the Southern Chapter ISA Tree Climbing Championship in Little Rock, Arkansas, March 25-27, 2007. Prizes will be awarded to winners of each event.

Tree lovers of all backgrounds are encouraged to volunteer for the event. Contact Mark Collins at (404) 378-2774.

New Sandy Springs Tree Ordinance Passed

2007-02-08T05:39:00.000-08:00

The Mayor and Council of Sandy Springs adopted a new Tree Conservation Ordinance, February 6, 2007, which was effective upon adoption. The Ordinance introduces concepts to protect tree canopy throughout the city, establishes a Tree Bank, and provides Administrative Standards and Best Management Practices.

This new Ordinance will be the subject of two identical training sessions, conducted by the City Arborist, Michael Barnett. They are scheduled for:

• Monday, February 12, 2007 from 1:00 to 3:00 pm in the City Council Chambers of City Hall, 7840 Roswell Road, building 500, and, repeated,

• Thursday, February 22, 2007 from 1:00 to 3:00 pm in the Training room adjacent to the Council Chambers of City Hall.

The City of Sandy Springs is posting an open invitation to all who wish to participate.

Meeting to Explain New Sandy Springs Tree Ordinance

2007-01-04T04:51:00.000-08:00

A public meeting on Jan. 11 will give Sandy Springs citizens an opportunity to ask questions about the city's proposed tree ordinance. There will be a presentation on how the ordinance works, the minimum requirements for land disturbance permits, the definition of specimen trees, the variance process, problems typically encountered on sites and enforcement. The meeting begins at 7 p.m. in City Council Chambers, located at City Hall in the Morgan Falls office park.

Sandy Springs on Cutting Edge of Tree Conservation

2006-12-05T05:18:00.000-08:00

In what may be the most significant change to an existing Atlanta area tree ordinance,the City of Sandy Springs is drafting an entirely new tree ordinance. The new one is proposed to replace the standing ordinance, which is currently a duplicate of the Fulton County ordinance with a few administrative changes.

The changes are not small. Rather than give the existing ordinance a tune-up, the proposed ordinance will dramatically change the way trees are inventoried, preserved, and replanted on construction sites and new developments. There will be an emphasis on tree canopy cover instead of trunk inches, and an improved method of accounting replacement and protected trees.

Sandy Springs citizens will have more opportunities to comment on the City’s proposed Tree Ordinance in the coming months. There will be a public hearing at 7 p.m. on Jan. 11, 2007, at City Hall. The Advisory Committee will meet at 7 p.m. on Dec. 11 and Jan. 22, 2007. A draft of the ordinance, which promotes conservation, is available for review on the City’s Web site at www.sandyspringsga.org. The City Council is expected to take action on the Tree Ordinance on Feb. 6, 2007.

Georgia Arborist Association Breaks Loose with 10k Grant

2006-11-28T12:04:00.000-08:00

The Georgia Arborist Association is charging forward in its efforts to organize local tree care companies, thanks to a $10,000 grant from the Georgia Foerstry Commission through its Urban & Community Forestry Grant program. The 14-year old professional association of tree workers, arborists, and tree enthusiasts is using the grant to fund the GAA's first executive director position, a move that promises to pump fuel into the growing organization.

On October 12, the GAA announced that the new executive director, Donna Rayfield, would take over the day-to-day operations of the association. This bold step will free the board of officers to lead rather than administrate. Rayfield is currently the secretary of Rayfield Tree Care, and will serve as a part-time director. Her strengths in business management, web administration, and business networking will add new depths of talent to the GAA. "We want to move the GAA from a local focus to a state and regional focus," Rayfield commented. "Right now the GAA is primarily an Atlanta organization, but it needs to pull together all tree care companies that operate in Georgia." When asked how the GAA will accomplish this, Ms. Rayfield responded, "Right now, the most value the organization can provide is professional networking, training opportunities, and business development."

As a benefit to members, GAA offers safety and technical training for tree workers, continuing education credits at their bi-monthly meetings, and social networking opportunities. The GAA also sponsors the Tree Climber's Jamboree, an annual competition for professional tree climbers held in March.

Giant Pecan Tree Still Going Strong

2006-11-10T11:16:00.000-08:00

Mulberry Park residents and shoppers are treated daily to the grandeur of a landmark tree, a 54" diameter Pecan tree located at the entrance to the live/work community. Mulberry Park is a new multi-use development outside of Braselton, GA. The tree was saved during construction of the site in 2003 and 2004, when the new community was transformed from farmland. The tree used to be hidden next to an abandoned barn, struggling among thick undergrowth and rampant-grown swamp privet. Early in the project stages, Sivica Communities hired tree preservation expert, Jesse Milton, to join the team dedicated to saving this unique tree.

The tree was given plenty of room for its roots to remain protected. Milton worked closely with the landscape architect, Hughes Good O'Leary and Ryan, to design a drainage system under the proposed road that would assure that the Pecan didn't drown. A lightning protection system was even installed in the tree canopy.

Three and a half years later, the tree is still very much alive and thriving. The site, just 1.5 miles north of Chateau Elan, is easily recognized by the tree presence at the back of the retail area of Mulberry Park. This Pecan's 100-foot wide canopy and massive trunk provide a striking monument at the entrance to the residential areas, and serves as a testament to the benefits of teamwork during tree preservation.

Piedmont Park is Focus of Important Tree Study

2006-11-03T13:40:00.000-08:00

The Piedmont Park Conservancy has had enough, and they aren't going to take it anymore. Last year, one of the largest trees in the fell victim to Ambrosia beetles, after an estimated 12 trees died over the past several years.

Fueled by a generous grant from The Home Depot Foundation, the Conservancy hired Bartlett Tree Experts to conduct a study of the insect at the Piedmont Park. The study concentrated on determining the population levels of the beetle and the threat it poses to the park's forest. The results of the study, which was just recently completed, has led to the development an integrated management program for control of the pests on mature and young trees in Atlanta's most important park.

On October 12, the Conservancy hosted a formal presentation of the findings of the report to concerned green industry professionals, property managers, and park supporters. Onebark Consulting Arborist is particularly interested in the findings of this report, since the arboricultural consulting firm deals with the protection and care of mature oaks on such a routine basis. Onebark hopes to analyze the findings of the study and use the information to help homeowners and communities champion their historic and high-value oaks.

There are hundreds of species of ambrosia beetle, however it is the imported beetles that are the main concern for live, apparently viable trees.

UGA Graduate Student to Study How Atlanta Land Policy Affects Tree Canopy

2006-10-13T12:23:00.000-07:00

Elizabeth Hill, a graduate student at the University of Georgia, has initiated a broad research project that could change the way communities in north Georgia have traditionally understood how land policy affects the local environment.

The purpose of this research, which is being funded by the United States Forest Service (USFS), is to evaluate the impact of government land use policies on tree canopy coverage. The project focuses on the 28-county metropolitan Atlanta region and the respective incorporated cities. The research method will gather data from a sophisticated online survey, distributed to arborists, urban planners, decision-makers, community groups, nonprofits, and experts and agents from a variety of fields. Ms. Hill's study is unique because participants are be given the opportunity to report data both for their own community and other communities in the metropolitan Atlanta region.

For more information, contact The Department of Agricultural and Applied Economics, University of Georgia,706-542-0843.

Snake Bites Arborist

2006-08-07T07:43:00.000-07:00

Don't get too comfortable in your Georgia back yard, because there are sometimes snakes afoot...or a-hand. A professional arborist in Atlanta was the victim of a venomous snake attack, apparently when the reptile became defensive as it was backed into corner at the base of a tree.

The incident occurred in suburban Sandy Springs, a large city just north of Atlanta. It was on a mature residential half-acre lot. The back yard was covered in ivy and blackberry bushes, which make great cover for all sorts of fauna.
The arborist was pulling thick ivy off the base of a large Tulip poplar when he was bitten. The snake sunk its teeth into the knuckle of his hand, and was able to dispense enough venom to make a nasty time of it. The arborist kept his wits about him, and was able to capture the snake and give him a complimentary ride to the hospital.

The snake was initially believed to be a rattlesnake, but after recovery, the arborist positively identified it as a copperhead. Copperhead bites are awfully painful, but rarely fatal to a healthy human. In fact, copperheads have the honor of scoring the most human bites of any eastern US snake, even more than rattlesnakes. The anti-venom for copperheads is the same as for rattlesnakes, so positive ID may be helpful but not necessary.

After his one-day stay in the hospital, the stricken arborist had this advice to give when messing around at the bottom of a tree or in ivy: "Be aware of your surroundings...and wear gloves. Not regular work gloves, but something with kevlar."

Unfortunately, the copperhead did not survive captivity.

Boomer Cherry Trees Enter Retirement

2006-07-28T07:00:00.000-07:00

Every tree-loving Atlantan knows about the Cherry Blossom Festival. Many have even attended the annual spring event in Macon, GA. The event celebrates the seasonal flowering of Yoshino cherry trees, and has been around for 24 years attracting hundreds of thousands of visitors during its 10-day stretch.

The Yoshino cherries, though, are in trouble. Macon residents, and the Macon City forester Mike Huffman, are well aware that this species of cherry is not a long-lived tree in middle Georgia. In fact, most of the 350,000 Yoshinos (yes, that many!) throughout Macon were all planted about about 35 years ago. This means that many of the trees are in varying stages of environmentally enduced decline, succumbing to the hot, dry summers of the region.

The Cherry Blossom Festival board has asked the city to begin monitoring the cherry tree population - possibly using GPS tracking for monitoring, routine inspections, and citizen education for the care of privately owned trees. The Festival board will also continue to plant more Yoshinos to help replace the aging population, and distribute free seedlings annualy.

The city and the festival board hope to become more proactive about cherry tree management, rather than reactive.

Speedier Building Permits Promised

2006-07-04T12:20:00.000-07:00

The Arborist Division of the Atlanta Bureau of Buildings has pledged to speed up the plan review process for certain projects. Ainsley Caldwell, the new arboricultural manager for the division, has created a "No Trees Impacted" exception for plans. Normally, all trees that have any type of impact within their critical root zone must have an impact percentage calculated and noted on the site plans. The City requires a prescription for a tree when the impact ranges between 20 and 33 percent. Apparently, the new provision will allow for a site plan to state that no trees will be impacted when the calculated percentage is less than 20%. This could help some site designers turn around their work product faster when there are no trees present on the site, or if the trees will only be minimally impacted.

The "No Trees Impacted" exception is part of Atlanta's Permitting Improvement Project initiated in April 2006. The goal of the project is to decrease the time it takes to issue a permit by 50 percent, by April 2007.

Controversial SB294 is defeated

2006-03-19T17:46:00.000-08:00

On March 13, the Georgia Senate failed to pass a bill that had significant implications to local tree, landscape and stream buffer ordinances. Although it would not have affected the current state regulations for streambanks and buffers, it would have prevented municipalities from enacting more restrictive or protective streambank ordinances beyond the state minimum. It also would have precluded local governments from enacting or enforcing tree removal ordinances that affect individual homeowners, such as the City of Atlanta's tree ordinance.

Conservation groups and supporters of tree ordinances are likely breathing a sigh of relief.

SB294 was primarily authored by senator Chip Pearson, of Dawnsonville, and was strongly opposed by such groups as the Georgia Chapter of the Sierra Club and Athens Grow Green Coalition.

Tree Mulch Update

2006-03-15T09:43:00.000-08:00

Here is more information regarding the safety of tree mulch products shipped from the southern US.

Big Tree Search 2006

2006-03-13T11:56:00.000-08:00

If you know of a big tree, secretly growing in your backyard or in the corner of a neighborhood park, its time to get the word out to Atlanta. Trees Atlanta and the Arbor Day Partners are looking for the largest tree of each native species inside I-285. The Big Tree Search recognizes the trees, and publically maintains an updated list of the champions.

The 2006 search appears to have wrapped up for this year (the deadline for entries was in February), so the new winners will likely be announced soon. If you missed your chance this year, submit a nomination form for 2007.

The Big Tree Search was formerly administered by Park Pride.

Termite Scare - trees and house in danger from mulch?

2006-03-08T08:27:00.000-08:00

An unsubstantiated warning is spreading throughout gardening and landscape circles, via a rediculous email - Mulch shipped from the Katrina areas of the US may contain the Formosan Termite and could damage your house and trees.

While the Formosan Termite is a problem in the lower latitudes of the US, it does not threaten the Atlanta area. Atlanta is too far north and we have too many cold spells to allow the termite eggs to hatch. In addition, the adults are unlikely to survive the mulch shredding process. After the shredding, mulch begins to compost automatically. Composting creates very high temperatures, in excess of 120 F, at which no remaining termite could escape!

The Houston Chronicle, and subsequently Snopes.com, have put this rumor to rest. Now what about regular termites here in Atlanta? Do they pose a threat?

No. Termites need structure. Tree mulch does not provide the structure, such as a long wood beam or railroad tie, in which to build their galleries. Mulch near your house foundation will not attract termites to your house.

There's a New Ordinance in Town

2006-02-15T10:49:00.000-08:00

Georgia's newest city is preparing to be a haven for tree-lovers. In keeping with the precedents of Atlanta and surrounding communities, Sandy Springs, the seventh-largest city in Georgia, also has a tree ordinance.

The Sandy Springs Tree ordinance currently looks familiar - it is nearly identical to the Fulton County Tree Ordinance from which it was born. Aside from some different administrative guidelines, the ordinance is the same. But don't expect it to stay that way. On February 18, the City Council will hold a public meeting to solicit input for revisions to the ordinance.

The City has hired Michael Barnett as the City Arborist. Barnett brings a wealth of practical experience to the adminsitration and enforcement of the City's tree ordinance. He was formerly an Arborist with Fulton County (working in the Sandy Springs area), and the Director of Horticulture at Zoo Atlanta.

Sandy Springs has traditionally been a hotspot of concern for trees. Groups such as Keep Sandy Springs North Fulton Beautiful, Inc., Big Trees Forest Preserve, Inc., and even the Sierra Club are very active in matters that relate to the Sandy Springs environment.

Homeowner saves $2,275

2006-02-14T20:38:00.000-08:00

Gwinnett County, GA -

A Lawrenceville man nearly chipped away $2,275 when his property was mis-diagnosed as having a Southern Pine Beetle infestation. Preferring to remain anonymous, the homeowner reported that a tree removal company visited his property and told him that two of his small pines died from pine beetles. The tree removal company explained that the insects were actively munching away in his live trees, and that he was on the verge of a terrible outbreak. Before hiring the tree cutter to proactively remove all 29 of his pines, the homeowner decided to check with a Consulting Arborist first for a thorough inspection and diagnosis of the problem.

Onebark, a Consulting Arborist based in Atlanta, reviewing the entire property, found no recent evidence of any Pine Beetles and gave the homeowner's landscape a clean bill of health. Apparently, the two small pines were suppressed and unhealthy, and were not part of a large scale beetle infestation. The owner was relieved at the news, and quickly asked the tree removal company not to return.

2005-08-11T19:45:00.000-07:00

What property owner doesn't want healthy trees? But is pruning an essential part of tree maintenance and health?

Before going any further, I cannot find any evidence, other than anecdotal, that pruning live branches and limbs from a tree will make the tree healthier. In fact, overpruning a mature tree could significantly shorten its lifespan. Dr. Kim Coder has published a very informative article concerning this very subject. He notes that severe pruning could lead to a correspoding dieback of roots. Many research arborists believe that ANY live wood pruning may equate to some level of dieback in the root system.

Larry Stouse, president of Horticulture Solutions correctly defines pruning as "The removal of plant parts to benefit the remaining parts." So before a saw is taken to a tree, there must be goal in mind first. What are we trying to achieve? Then the most important question must be answered: "is the pruning the correct solution to the problem?" I have not seen supporting studies showing how the removal of healthy limbs and branches actually helps the vigor of a tree. Keep in mind, though, that careful and judicious pruning may not negatively affect the tree either.

How much is enough? Some people say 20% of the canopy is the limit. Others say 15%. Those ARE guesses. There is no standard threshold that is based on empirical evidence. The 20% rule is something that has been widely accepted but never statistically proven. So who can be sure? Is there a significant physiological risk? We don't know. However, that figure is all we have right now, so we should conservatively live with it until credible research can give us a clearer understanding of the relationship between tree vigor and pruning cycles. Tree owners need only to take off what is necessary for people to comfortably coexist with trees.

Be wary of those who claim that live-wood pruning equals health. One of the catch words is "thinning." Sometimes it is used to nudge people into purchasing services. It sure sounds good, doesn't it? Everyone wants to 'slim down' a bit.

Removal of dying or diseased limbs, and safe house and understory clearance is the most pruning that the average property owner will ever need to ever do. Successful tree health programs rely on little pruning and a lot of environmental and soil management. Be protectful when it comes to investing your tree care budget in pruning

About

2005-05-01T18:11:00.000-07:00

Tree News is a local weblog based in Atlanta, feeding relevant articles about Georgia's urban forests and green places.

Tree News is authored by Board Certified Master Arborist, Jesse Milton.