Evaluation of Some Acaricides for Control of Spider Mites on Three Woody Ornamentals in Louisiana1

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Seven compounds were evaluated for control of some spider mites on 3 ornamental plants in Louisiana. These were: Acaralate® (isopropyl 4,4'-dichlorobenzilate), GS- 19851 (isopropyl 4,4'-dibromobenzilate), GS-13005 (O,O- dimethyl phosphorodithioate S-ester with 4- (mercaptomethvl) -2-methoxy-Δ2-1,3,4-thiadiazolin-5-one), Galecron® (N'- (4-chloro-o-tolyl) -N,N-dimethylformamidine), Nissol® (2-f1uoro,N-methyl-N-I-naphthylacetamide) (may apply only to 25% Ee), chlorobenzilate, and tetradifon. GS 13005 and GS-198.51were most effective in controlling the southern red mite, Oligonychus ilicis (McGregor), on holly and azaleas and the two-spotted spider mite, Tetranychus urticae Koch, on roses. GS-13005 was most dfective in controlling a green mite, Eotetranychus clitus (Pritchard & Baker), and GS-19851 ill controlling the privet mite, Brevipalpus obovatus Donnadieu, on azaleas. Other compounds gave a significant degree of control, but none were so effective as GS-13005 and G5-19851.

Document Type: Research Article

Publication date: December 1, 1969

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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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