Boll weevils (Anthonomus grandis Boheman) were tagged with radioactive phosphorus by feeding to adults in solutions or rearing them in larval diets to which H3P32O4 had been added in varying quantities. The rates of loss of radioisotope were higher for those weevils fed P32 as adults than for the weevils reared on the radioactive larval diet. Studies of the effects of p32 on fecundity, longevity, lengths of oviposition and pre-oviposition periods disclosed that the weevils reared from radioactive larval diet were more adversely affected than the weevils fed as adults. Females reared from the two highest dosages in the diet failed to lay eggs. Larval mortality increased in proportion to the amount of radioactivity in the diet, and mortality was always greater and began sooner for the weevils reared in radioactive larval diet.
Document Type: Research Article
Publication date: December 1, 1961
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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.