Will crossbow herbicide kill trees11/25/2023 ![]() Girdles around the stem can be made quickly, using a chainsaw. Either a stump or a girdle can be used for the cut surface. Undiluted or diluted Garlon 3A at a rate of 50-percent water can either be sprayed on the cut surface using a hand sprayer or else wiped on the cut surface using a sponge applicator (sponge-type paint applicators can be used). Cut-surface application can be made during any season of the year, but application during the dormant season reduces the potential for drift injury. Cut-surface treatment provides a high level of control of tree root systems, especially for suckering species such as black locust. Garlon 3A (a formulation of triclopyr) is a selective translocated herbicide that can be applied as a foliar or cut-surface treatment. Care should be taken to avoid contacting non-target species. Follow label recommendations to obtain best results minimize drift. Slight regrowth may occur the following season but saplings will die during summer. Krenite inhibits bud expansion in the spring, and control effects are not seen until the following spring. A 1-percent solution applied as a foliar spray is effective. Thorough coverage with a soft water carrier is required and a nonionic surfactant will improve results. Krenite should be applied only in July through September. Krenite (a formulation of forsamine ammonium) is a non-volatile, contact, brush herbicide, applied as a spray to leaves usually during the two-month period before fall coloration. A variety of sprays are available for foliage or cut stump treatment, but these methods will probably require more follow-up treatments than the basal bark applications. Pelleted herbicides are discouraged because leaching could occur, affecting native woody plants. Avoid using triclopyr if rain is forecast for the following one to four days otherwise runoff will harm non-target species. Diesel fuel may kill vegetation around the target tree. Great care should be exercised to avoid getting any of the mixtures on the ground near the target plant since some non-target species may be harmed. of Garlon 4 is added to one gallon of diesel fuel. Applications in periods of dry weather will aid in root control.īasal bark treatment with Garlon 4 (triclopyr) can also be effective, although re-sprouting has occurred in at least one instance with this treatment. A thorough spraying that includes spraying until run-off at the ground line is noticed is necessary to hinder re-sprouting. Thoroughly wet all basal bark areas, including crown buds and ground sprouts. Spray basal part of brush or trees to a height of 15 to 20 inches above the ground. Remedy (a formulation of triclopyr) is recommended at a 2-percent solution in diesel fuel. This method minimizes re-sprouting from roots and stumps when applied between mid-July and the end of December. This should be done when trees are small and thin-barked (6 inches or less DBH). Herbicidesīest success with herbicides has resulted from basal bark application of herbicides to live standing trees. Annual haying may be adequate to control first year seedlings and prevent spreading in prairie communities. This treatment will probably need to be repeated for several years to achieve adequate control. All stems should be cut, and new stems that appear subsequently should also be removed in the same growing season. Spread of black locust can be hindered by repeated cutting during the growing season. Whatever control measure is adopted, a follow-up treatment is usually necessary. As a result, management has concentrated on chemical control with variable success. Mowing and burning largely have proven only temporarily effective due to the tree's ability to spread vegetatively. Black locust is difficult to control due to its rapid growth and clonal spread.
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