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Comparison of Chemical Site Preparation Treatments in the Georgia Piedmont

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Chemical site preparation treatments were compared against each other and against mechanical treatments in a randomized complete block design. Two studies were conducted with spring (June) and late summer (September) treatment dates. Efficacy was measured 2 years after treatment as percent control on individually identified stems and as percent change per acre from subplot data. Combinations of Tordon K®, Tordon 101® mixture, Garlon 4®, Galon 3A®, Velpar L®, and Roundup® herbicides were tested.* For the spring study, combinations of Tordon + Garlon 4 herbicides effectively controlled red maple, dogwood, and red oaks. Tordon 101 + Garlon 4 was the most effective treatment on water/willow oaks. Among the treatment on sweetgum. Velpar L was the most effective treatment on water/willow oaks. Among the late summer applied treatments, Roundup provided the best overall control of the hardwood species examined. A shear, rake, and disk treatment provided comparable control to chemical treatments in the spring study, but at a higher cost. Double chopping was not an effective treatment in the late summer study. South. J. Appl. For. 14(1):24-32.
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Document Type: Journal Article

Affiliations: Dow Chemical Co., Atlanta 30346

Publication date: 1990-02-01

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    Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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