Therefore, few options remain except the application of herbicides. A prescribed burn in March before herbicide treatment will kill the smallest plants and sever draping vines, leaving roots and new growth a better chance for exposure to chemicals. This is an opportune time to mark the largest roots as well as any hazards in the area slated for treatment. Old roots need heavier herbicide application than young ones. Best results from chemical treatment occurs if application is done in late summer when flowers appear and nutrients are being actively transported to roots.
If preservation of a natural area or community limits the use of grazing or large-scale herbicide application, a combination of trimming, disking, and digging as outlined above will set the plants back and perhaps eradicate a new infestation in three to four years. Foliar application of herbicide using a backpack sprayer will provide more rapid eradication.
The expense of restoration of a small area following herbicide use compared to the effects of kudzu spreading over additional acres may weigh in favor of a concentrated herbicide treatment prior to spread.
Plant native grasses in the fall after treatment to control erosion and spread of kudzu and invasion of other weedy plants which may colonize the site after kudzu dies. Many herbicides will kill back the stems and leaves of kudzu; however, most will not provide eradication by killing of the root systems.
Testing of 25 herbicides over an eight-year period by Miller led to the following recommendations:. Both products are applied as foliar sprays which then should be washed from the leaves to the ground by rainfall or spray irrigation of less than one inch within two to five days after application. This allows additional uptake by root systems. Treatment should be done no earlier than late June or July to assure that all stems are actively growing. Tordon Mixture is recommended at a rate of one gallon per acre for younger kudzu infestations and two gallons per acre for patches older than ten years.
The rates are again doubled for this mixture on older infestations. Successful eradication has been achieved by applying the Tordon sprays at a volume of 40 to 80 gallons of spray mixture per acre. Thorough coverage of herbicide is essential to successful treatment. Open patches should be sprayed in a cross-hatch pattern because of the density of foliage.
Half of the total solution should be sprayed in one direction and the other half sprayed perpendicular to the first application. Spot treatment with a backpack sprayer can be used on small patches or as a second treatment. These mixtures will be percent effective when vines immediately around root crowns are sprayed to medium wetness.
Re-treatment with the Tordon products is recommended following a successful initial treatment. Many large kudzu roots will not sprout for two years following the first treatment, so re-treatment should occur starting in the third year following the initial treatment. Thus, one year is skipped between the initial treatment and the first re-treatment. Re-treatment application rates are half those of the initial treatment.
Both Tordon products are restricted use herbicides and management agencies may only apply by certified applicators or persons under their direct supervision. Private landowners may purchase and apply for agricultural purposes after training from University Extension Service personnel. Picloram will harm non-target organisms, including crops and other non-target plants. It is very water soluble and may move into groundwater or waterways; therefore, it should not be used near streams, ponds or other sensitive areas.
Picloram is particularly damaging to legumes and is relatively persistent in the environment. It can kill new plants introduced into the treated area too soon after application, although many grasses are not affected. Veteran dicamba formerly Banvel , a product of Riverdale Chemical Company, is recommended for sites near water, although it should not be sprayed directly onto water.
Veteran is a dicot-specific herbicide used as a foliar spray. Application rate is two gallons per acre for younger patches and three gallons per acre for infestations over ten years old. August or September are recommended months for application, but moderate rainfall is required for proper soil activation. Spike 20P pellets and Spike 80W wettable powder , both DowElanco formulations of tebuthiuron, are slow-acting, residual herbicides that cause vegetation to yellow the first year and die the second year.
This method causes a lot of soil disturbance and is not ideal on steep slopes or by streams where erosion is a concern. Hiring a herd of goats or sheep is a great option for an area that is completely covered with Kudzu.
They do a tremendous job clearing all of the herbaceous vines. This technique is also used before professional treatment to limit the amount of herbicide used. If you have any questions about this guide please email restoration treesatlanta. Magnolias are part of an ancient lineage of flowering plants dating back approximately 95 million years. The Atlanta BeltLine Arboretum is home to 18 types of magnolias from evergreen to flowering.
Two magnolias in particular have witnessed history as they were planted just beyond the outfield wall for the former Ponce de Leon Park, where the Atlanta Crackers played baseball. Babe Ruth and Eddie Matthews both hit home runs that were caught in the canopy of one of these magnolia trees. As part of Arboretum experimentation, we have taken cuttings from these historic magnolias and grown them into new trees so that this piece of history can live on the Atlanta BeltLine Arboretum and in new parks and baseball fields around Atlanta.
The oak trees on this slope and throughout the Arboretum represent many ecosystems in Georgia, from bottomland hardwood swamps to granite outcrops. Of the approximately 90 species of oaks native to the United States, 33 are native to Georgia. All 33 oaks are growing on this slope and between them dance 33 stainless steel leaf sculptures — one for each tree. For more information about the individual oaks featured, see our fact sheet here.
To learn more general information about our Georgia oaks, check out this video here. Among the stateliest of our native trees, beeches are indicative of a mature forest. Though they can take around 40 years to produce a large quantity of nuts, beech trees are critical for wildlife. Beeches provide food and shelter for all kinds of birds and mammals, such as the red-headed woodpecker.
Dubbed the fairy ring, the circle of beech trees here surrounds a granite outdoor classroom and gathering place where you can contemplate how the beech trees will look in 3, 5, and 10 years! The Atlanta BeltLine Arboretum is now home to the largest public native azalea collection in the Atlanta Area with over azaleas on display. Others recommend building barriers of mulch, especially grass clippings, as a deterrent.
Image by dmott9 via Flickr. Above: The kudzu vine chokes forests, literally smothering trees and other plants, preventing them from getting sunlight. It is said to be herbicide resistant, so regardless of the negative health and environmental impact, herbicides should be crossed off the list.
Photograph by Ken Ratcliff via Flickr. Kudzu is creeping into New York and Pennsylvania, and has been found as far north as coastal Canada.
Plastic sheeting can also be used, creating heat to kill the plant. Above: Kudzu on a bridge. Photograph by Suzie Tremmel via Flickr. Several cities have used goats to fight kudzu infestations. They are voracious eaters and can easily navigate hilly terrain.
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