Herbaceous weed control for plantation establishment after tree planting Herbicides are most often used for the following silvicultural operations, which are described in more detail in the following section: The label directions on the specific product container being used are the law. Numerous products are available that contain the same active ingredient or ingredients, but the reader should be aware that there might be considerable differences among product formulations, even among herbicide products with the same concentration of the same active ingredient(s).
Inclusion of a product trade name in this publication does not constitute an endorsement of a product or a company, as other products manufactured by different companies might be equally suited for the intended herbicide use. For example, imazapyr (Arsenal® Applicators Concentrate, Chopper®) indicates that both herbicide products named Arsenal® Applicators Concentrate and Chopper® contain the active ingredient imazapyr. In this discussion, both the herbicide active ingredient (starting with a lower-case letter) and one or two examples of trade names of herbicide products (starting with a capital letter, usually in parenthesis) will be given.
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Name, address, and pesticide applicator license number of the person making the recommendation as required by state and local law Other integrated vegetation management recommendations such as prescribed burning Special precautions to protect the environment and provide worker safety History of vegetation management on that site to avoid developing herbicide-resistant weeds or encountering herbicide residual problemsĭescription of the location and accurate treatment area measurementĪpplication rate(s) in both amounts of product and amounts of active ingredient (a.i.) or acid equivalent (a.e) per acre, hectare, or other measure of area treated Hazards to applicators (power lines, open wells, etc.)Īvailable herbicides and label recommendations for the intended use Sensitive areas (adjacent crops, homes, bodies of water, etc.) Soil and site conditions affecting herbicide behavior Objective of the intended silvicultural operationĪppropriate application method (aerial, ground equipment, hand-held) Therefore, in developing a site-specific herbicide treatment, the forest manager must carefully consider: The herbicide treatment must also fully comply with product labels and other regulatory constraints.
One should attempt to select the herbicide program that can be expected to provide effective weed control with minimum environmental or other hazards at the lowest cost. It is intended for use by private forest landowners, foresters, and other land managers.ĭeveloping a herbicide treatment prescription is a complex process that involves matching a suitable herbicide program with a specific silvicultural operation and an overall management objective. This paper is intended to review important considerations in developing effective and environmentally sound herbicide recommendations for managing vegetation in forests.
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