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Effect of 4'- (3,3 -Dimethyl-l-triazeno ) acetanilide and Other Compounds on Several Lepidopterous Pests1 of Cotton2

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Laboratory applications of 4-(3,3-dimethyl-l-triazeno) acetanilide (American Cyanamid CL-24055) to cotton plants limited leaf feeding and reduced the larval weights of the bollworm, Heliothis zea (Boddie); tobacco budworm, H. virescens (F.); cabbage looper. Trichoplusia ni (Hübner); yellow woollybear, Diacrisia virginica (F.); and cotton leafworm, Alabama argillacea (Hübner). Feeding damage by the cabbage looper was reduced 90% when larvae wee placed on leaves 2 hr after 24 hours. Injection or topical applications of CL-24055 to bollworm larvae did not reduce larval feeding as much as foliage applications. In field-cage studies a 58% reduction occurred in populations of bollworm larvae after treatment with CL-24055. Also, in a field test with CL-24055, a 22% reduction occurred in squares and bolls damaged by Heliothis spp. Tobacco budworm larvae fed leaves treated with CL-24055 weighed less, whether or not the labial palpi were removed. The following materials caused no (<1%) reduction in tobacco budworm and cabbage looper larval feeding and weitht: alpha- (3-phenylpropyl) piperonyl alcohol; phenacyl thiocyanate; N-sec-butyl-p- toluamide; p- (1,1,3,3-teracnetgyt-butyl) phenyl propionate; octyl m-toluate;4 (or5) -chloro-N-N-dicthy 1-2-methylcyclohexanecarboxamide; N,2,2-trimethy1-4',5'- (methylenedioxy) -3 (2-methylpropenyl) -2'- propylcyclopropanecarboxanilide; N-butylsuccinimide; 2-methyoxyethyl 4(or 5)-chloro-2- methylcyclohexanecarboxylate; calamus oil distillate fractions; imidazole; and the plant pigment quercetin (3,3', 4'5,7-pentahydroxyffavone).

Document Type: Research Article

Publication date: February 1, 1968

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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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