Sixty-three chemical compounds were screened at Orlando, Florida, in 1963 and 1964 against 2 species of eriophyid mites-the citrus rust mite, Phyllocoptruta oleivora (Ashmead), and Aculus pelekassi (Keifer) - on citrus. Initial tests were made at a concentration of 20 ppm with infested seedling leaves that had been dipped into acetone suspensions of each chemical. Promising compounds were retested at a concentration of 2 ppm, and several that appeared effective against I or both species were tested at concentrations below 2 ppm. The most promising compounds against both species of mites were Chloropropylate® (isopropyl 4,4'-dichlorobenzilate), Stauffer N-4539 (O-isopropyl ethylphosphonodithioate S-ester with N (mercaptomethyl)phthalimide), Stauffer N4543 (O-isobutyl ethylphosphonodithioate S-ester with N-(mercaptomethyl)- phthalimide), NIA 9241 (O,O-diethyl phosphorodithioate S-ester with 6-chloro- 3 - (mercaptomethyl) -2-benzoxazolinone) , Thompson-Hayward TPTC (tiphenyltin chloride) and Thompson-Hayward TPTH (triphenyltin hydroxide) Bayer 37344 (4- (methylthio) -3,5-xylyl methylcarbamate) and SheIl SD-9129 (3-hydroxy-N-methyl.cis-crotonamide dimethyl phosphate) gave excellent results against A. pelekassi but very poor results against P. oleivora, which is the mite of greatest economic importance. Nabac (2,2'- methylenebis[3,4,6-trichlorophenol]) was promising against P. oleivora but not strongly toxic to A. pelekassi.
Document Type: Research Article
Publication date: June 1, 1967
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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.