Toxicological Studies on Cutworms. IV. Laboratory Investigations on the Toxicity of Insecticides to the Variegated Cutworm, with Special Reference to Method of Application on Insecticidal Activity1
Authors: HARRIS, C. R.; SVEC, H. J.
Source: Journal of Economic Entomology, Volume 61, Number 4, August 1968 , pp. 970-973(4)
Publisher: Entomological Society of America
Abstract:Laboratory tests indicated that 5 of 7 insecticides tested as direct-contact poisons against 3rd- and 4-th-instar variegated cutworms, Peridroma saucia (Hübner), were more effective than aldrin. The most toxic was Lannate®methyl N-[(methylcarbamoyl)oxy]thioacetimidate) >DDT >parathion>Dursban® (O,O-diethyl 0-3,5,6-trichloro-2- pyridyl phosphorothioate) >Ciba 8Si4- (O- (2,5-dichloro-4-iodophenyl) O,O-diethyl phosphorothioate). Birlane® (2- chloro-1- (2,4--dichlorophenyl) vinyl diethyl phosphate) and Bayer 37289 (O-ethyl 0-2,4-,5-trichlorophenyl ethylphos-phonothioatc) were slightly less toxic than aldrin. As soil-surface applications, Dursban and aldrin were highly effective, DDT, parathion and Bayer 37289 were only slightly less so, and Lannate was ineffective. Soil-surface applications of Dursban were 2-4 times as effective as soil incorporations. Dursban, DDT, and Lannate were all highly effective as stomach poisons. Lannate was 32 times more effective as a stomach poison than as a soil insecticide. The relationship between method of application and efficacy is discussed.
Document Type: Research Article
Publication date: 1968-08-01
- 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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