Eurasian Watermilfoil Control Using Contact Herbicide Phenological Timing.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
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This technical note evaluates the efficacy of the contact herbicide Aquathol-K upon the exotic weed Eurasian watermilfoil Mynophyllum spicatum L. when applications are timed to coincide with periods of low carbohydrate storage within the target plant. This herbicide demonstration study was based on previous phenological research to determine when Eurasian watermilfoil has the least amount of stored carbohydrates available for regrowth Madsen l997b. By timing the herbicide application with low total nonstructural carbohydrate storage, aquatic plant managers can maximize the effectiveness of the herbicide treatment.