Onion, Allium cepa L, plants were sprayed with dimethoate. Nectar samples collected from these plants over a 2-wk period contained up to 7 ppm dimethoate. There was a gradual reduction in nectar contamination over the sampling period. Colonies of Apis mellifera L. that fed on sugar solutions containing 5.0, 1.0, 0.2, or 0 ppm dimethoate were compared for adult survival, comb building, honey storage, and ability to produce offspnng. The bees could choose between sugar solutions with or without dimethoate; nevertheless, colonies that received dimethoate were seriously damaged at all concentrations tested.
Document Type: Research Article
Publication date: August 1, 1979
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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.