Drosophila Control in Tomato Fields1

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Insecticidal sprays were tested for the field control of Drosophila oviposition--principally that of Drosophila melanogae/er Meig--in tomato fruits during 1955 and 1957. Diazinon® (O,O-diethyl O-(2-isopropyl-4-methyl-6-pyrimidinyl) phosphorothioatc) applied at the rate of one-half pound per acre gave a satisfactory reduction of Drosophila activity. Wettable powder, emulsifiable concentrate and a granular formulation of Diazinon were compared and found to he equally effective at the rate of one-half pound per acre. The granular formulation exhibited long residual action and there appeared to be some cumulative effect from repeated applications. Malathion applied to small plots and in commercial plantings was only effective for 2 to 3 days and was followed by a very rapid fly buildup. Phosdrin® (1-methoxycarbonyl-1-propen-2-yl dimethyl phosphate) had somewhat the same weakness as malathion--short residual action. Ronnel and Dibrom®(1,2-dibromo-2,2-dichloroethyl dimethyl phosphate) were tested during 1957 only and compared favorably with Diazinon. Hydrolyzed yeast did not prove to be an added attractant to the flies when used alone.

Document Type: Research Article

Publication date: December 1, 1960

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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.
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