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Field tests for control of Limonius canus LeConte in potatoes were conducted in eastern Washington during 1964-1967. Fumigation of soil in autumn with ethylene dihromide, 3 gallons of 83% solution per acre; Telone® (mixed dichloropropenes), 20 gal/acre; or dichloropropane-dichloropropene mixture, 25 gal/acre. gave excellent control. The following broadcast treatments, applied as granular formulations (5-14.3% active ingredient), gave similar results: 2 lb per acre of Dyfonate®(O-ethyl S- phenyl ethylphosphonodithioate), 3-4 Ib/acre of diazinon Shell or parathion, and 4 lb/acre of carbofuran or Bay 37289 (O-ethyl 0-2,4,5-trichlorophenyl ethylphosphonothioate). In 1967. treatments of SIb/acre of Bay 37289 in an emulsifiable formulation were superior to all other broadcast treatments except Dyfonate. Broadcast treatments tended to be more effective and less variable than band Or sidedress treatments with the same chemicals. These latter treatments with 2-3.3 lb/acre of granular phorate gave good control but were phytotoxic in 2 tests. A band treatment with 4: lb/acre of granular disulfoton and SD 8530 (3,4,5-trimethylphenyl methylcarbamate) broadcast treatments with up to 6 Ib/acre of granular Shell SD 8530 (3,4,5-trimethylphenyl methylcarbamate) were' inferior to other treatments.
Document Type: Research Article
Publication date: October 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.