Laboratory and Field Evaluation of Insecticides Against the Egyptian Cotton Leafworm1
Authors: ZEID, M.; SAAD, A. A.; AYAD, A. M.; TANTAWI, G.; ELDEFRAWI, M. E.
Source: Journal of Economic Entomology, Volume 61, Number 5, October 1968 , pp. 1183-1186(4)
Publisher: Entomological Society of America
Abstract:Several new insecticides and mixtures were evaluated in the field for control of Spodoptera littoralis (Boisduval). Bioassay was performed in the laboratory with S. littoralis larvae, to determine effectiveness of insecticide residues from thc field. Many materials showed strong ovicidal action with some having LT50 values extending to 9-10 days. As larvicides, none of the tested materials had an LT50 longer than 7 days. There was good correlation between laboratory and field tests. Abate® (O,O-dimethyl phosphorodithioate O,O-diester with 4,4'-thiodiphenol) and ClBA 8514 (N'#x143;- (4-chloro-O-tolyl) -N,N-dimethyIformamidine) were good ovicides but poor larvicides. Considering results from all tests, the 2 experimental insecticides- E. I. 47031 (cyclic ethylene (diethoxyphosphinyl) dithioimidocarbonate), E. I. 47470 (cyclic propylene (diethoxyphosphinyl) dithioimidocarbonate) -and a mixture of endrin-Bidrin® (3-hydroxy-N,N-dimethyl-cis-crotonamide dimethyl phosphate) were the most promising.
Document Type: Research Article
Publication date: October 1, 1968
- 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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