When Oil Soluble Blue II@ dye was incorporated in the larval diet of PectinoPhora gossypiella (Saunders), concentrations of dye ranging from 0.05 to 0.08% gave the best internal bright blue mark in adults without causing subsequent deleterious effects. Adults, eggs, and F1 generation 1st-stage larvae were more distinctively tagged when concentrations of 0.02-0.08% dye were premixed with 0.35% refined cottonseed oil, and eggs laid by females emerging from larvae treated with dye + 0.35% oil were marked blue internally. These females laid blue eggs throughout a 10-day oviposition period, and the 1st-stage F1 generation larvae were marked blue internally for 2-3 days.
Document Type: Research Article
Publication date: December 1, 1971
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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.