Field Evaluations of Acephate and Dimilin Against the Douglas-fir Tussock Moth

Authors: neisess, John; Markin, George P; Schaefer, Randy

Source: Journal of Economic Entomology, Volume 69, Number 6, December 1976 , pp. 783-786(4)

Publisher: Entomological Society of America

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Efficacy of acephate at 1.0 and 0.5 lb AI/2 gal/acre against Orgyia pseudotsugata (McDunnough) was compared to DDT at 0.75 lb AI/gal/acre on replicated 20 acre plots in 1974. Acephate at 1.0 lb AI/gal/acre and Dimilin{ [1- (4-chlorophenyl) -3 - (2,6 -difluorobenzoyl) urea] at 0.25 lb AI/gal/acre were evaluated on replicated 150-acre plots in 1975. In both experiments, all treatments caused significant reductions in larval populations. In 1974, the 1.0 lb acephate treatment resulted in populapation reductions which were comparable to the DDT treatment; however, the larval knockdown was faster for DDT. Both acephate and Dimilin provided excellent population control and foliage protection in 1975.

Document Type: Research Article

Publication date: December 1, 1976

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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