Author
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Webb, Ralph |
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Submitted to: United States Department of Agricultural Interagency Gypsy Moth Research Forum
Publication Type: Abstract Only Publication Acceptance Date: 3/30/2000 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: Gypchek (a gypsy moth nuclear polyhedrosis virus product) has been registered with the U.S. Environmental Protection Agency for use against the gypsy moth using either aerial or ground equipment. Environmental concerns over the effects of non- specific insecticides applied to forest ecosystems have stimulated interest in the use of Gypchek. When properly applied at the appropriate dosage against appropriate population structures under appropriate weather conditions, the product will usually provide adequate foliage protection; however, the product is expensive and is non-forgiving if applied under marginal conditions. Yes, there is more to do if Gypchek is to fulfill its potential. Specifically, overall efficacy should be improved, especially for the one-application treatment option. Secondly, cost reduction is needed for the virus, its formulation, and its application. While improvements in efficacy and cost must arise from laboratory research, such improvements must be field- validated. Thirdly, the window of application must be widened. Currently, Gypchek must be applied against first-second instar larvae to be effective, leaving program managers with little leeway in time to achieve a reasonable benefit. |
