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Despite numerous improvements, laboratory bioassays intended to predict responses of natural insect or mite populations to pesticides have been inadequate. Modifications to improve the predictive value of results have included the use of realistic conditions of exposure, scoring procedures other than dead versus alive, identification of significant variables that affect response, a multiple bioassay approach, and estimates of optimal time of application on responses of developmental stages that might be affected by the pesticide. The need to evaluate effects on the basis of population, rather than individual, responses is described. A new approach to laboratory bioassay, population toxicology, is proposed as a means to predict pesticide efficacy. With such an approach, parameters, such as physiological time (e.g., degree days), that define developmental status of a laboratory population or a sample collected from the field would be considered in relation to pesticide response.
Document Type: Research Article
Publication date: February 1, 1990
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.