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From 1956 through 1961, 24 insecticidal and two primarily fungicidal materials were evaluated at Quincy, Florida, for control of the green peach aphid. Myzus persicae (Sulzer), on shade-grown tobacco. Weekly applications of 4% Diazinon® (O,O- diethyl O-(2-isopropyl-4-1-methyl-6-pyrimidinyl) phosphorothioate), 1.5% Phosdrin® (a mixture of the alpha isomer of 2-carbomethoxy- 1-methylvinyl dimethyl phosphate (not less than 60%) and related compounds (not more than 40%), 4% Thiodan® (6,7,8,9,10,1 0-hexaehloro-1, 5.5a,6,9,9a-hexahydro-6,9-methano- 2,4,3-benzodioxathiepin-3-oxide), or 3% Trithion® (O,O-diethyl S-p-chlorophenylthiomethyl phosphorodithioate) showed considerable promise as possible substitutes for 1% parathion. Two per cent endrin, 5% malathion, or 1.5% Telodrin® (1,3,4,5.6,7,8. 8-octaehloro-1 , 3. 3a.4. 7, 7a-hexahydro-4, 7-methanoisobenzofurall applied weekly gave commercial control; however. the three materials were not so efficient as 1% parathion. Applications of 1% parathion at 2-week intervals decreased injurious aphid populations and maintained effective control. Results indicated that absolute or 100% control was not essential to guarantee a commercially successful crop. Although resistance by this aphid to organic phosphate insecticides has been reported on various crops in other localities, no evidence of resistance was found on tobacco in the Quincy area.
Document Type: Research Article
Publication date: February 1, 1963
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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.