Overwintering and spring-emergence studies of Epitrix hirtipennis (Melsheimer), conducted from 1966 to 1971, showed that few beetles emerged in cages during March, 50% emerged by the end of April, and about 95% had emerged by May 31. With the exception of 1967, the insect was not recovered in cages after June 20. Recovery of tobacco flea beetles placed in over wintering cages ranged from 48% in 1967 to a low of 13% in 1970. Peak emergence generally followed light rainfall and warm air temperatures. There appeared to be no direct relationship between the time the beetles were introduced into over wintering cages in the fall and the time of emergence in the spring, or on winter survival.
Document Type: Research Article
Publication date: February 1, 1973
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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.