In laboratory tests against the adults of the apple maggot, Rhagoletis pomonella (Walsh) (Diptera: Trypetidae), seven insecticides were rated, in descending order, as follows: Diazinon®, Guthion®, malathion, Sevin®, DDT, calcium arsenate, and lead arsenate. Calcium arsenate used with Bordeaux mixture was as effective as Sevin, and the addition of nicotine sulphate increased the effectiveness to that of malathion. A mixture of lead arsenate and DDT was more effective than either used alone. Some loss of toxicity occurred when Diazinon or Sevin was combined with the fungicides glyodin, captan, dichlone, and Bordeaux mixture. Lead arsenate increased slightly in effectiveness when combined with captan but not with glyodin or dichlone. Diazinon is O,O-diethyl O-(2-isopropyl-6-methyl-4-pyrimidyl) thiophosphate Guthion is O,O-dimethyl S-4-oxo-1,2,3-benzotrillzin-3-(4H)- ylmethyl phosphorodithioate Sevin = 1-naphthl N-rnethylcarbamate Sevin = I-naphthl N-rnethylcarrbamate
Document Type: Research Article
Publication date: June 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.