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A single, accurately-timed spray of fensulfothion or carbofuran, to coincide with Hylemya brassicae (Bouché) fly emergence for each generation, was as good as or better than soil treatments at planting or up to 21 regular weekly sprays. The best method to determine dates for timed sprays was on-site air temperature measurements to calculate thermal unit (TU) accumulations. Slightly less efficient predictive methods for adult emergence included adult trapping on sticky stakes, on-site soil TU, off-site air TU, and phenological observations. On-site air TU accumulations in conjunction with fly trapping is being used as a practical pest management practice in Wisconsin.
Document Type: Research Article
Publication date: June 1, 1977
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.