Control of Insects and Mites Attacking Mint in Central Washington1

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The two-spotted spider mite (Tetranychus telarius (L.)) is the most serious pest of peppermint and spearmint in central Washington. A single application of 0.75 lb. per acre of Kelthane® (1,1-bis(p-chlorophenyl) 2,2,2-trichloroethanol), used for 4 years in the experimental program, gave outstanding seasonal control. Tedion® (p-chlorophcnyl 2,4,5-trichlorophenyl sulfone), at 0.66 lb. per acre, gave equal control, but only 2 years' data of residues on the hay and in the oil have been collected. Single applications of parathion, Diazinon® (O,O-diethyl O-(2-isopropyl- 6-mcthyl-4-pyrimidyl thiophosphate), ethion, and Trithion ® (S-(p-chlorophenylthio)methyl O,O-diethyl phosphorodithioate) have given fair control. The data indicate that these materials should be used at 1.5lbs. per acre for adequate control. TEPP, Phosdrin® (l-methoxyearbonyl-l-propen-2-yl dimethyl phosphate), and Dibrom® (1,1-dibmmo-2, 2-diehloroethyl dimethyl phosphate) require 2 applications 7 days apart for satisfactory control. All of the phosphate pesticides tested controlled a mint aphid, Phorodon menthae (Buckton). DDT has been satisfactory for control of the mint flea beetle Longitarsus waterhousei Kutsehera), alfalfa looper (Autographa californica (Speye)), and the cutworm, Heliothis phloxiphaga (G. & R.). Aldrin or dieldrin incorporated into the soil has controlled root-feeding larvae, including those of the mint fleat beetle, strawberry root weevil (Brachyurhinus ovatus (L.), ten-lined June beetle (Polyphylla decemlineata (Say), a scarab, Aphodius gramarius (L.), and wireworms.

Document Type: Research Article

Publication date: August 1, 1961

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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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