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Conventional high-gallonage, high-volume spraying of dairy cattle with 0.03% diazinon, 0.1% coumaphos, 0.1% carbaryl, or 0.1-0.5% Ciodrin® (alpha-methylbenzyl 3-hydroxycrotonate dimethyl phosphate) controlled cattle biting lice, Bovicola bovis (L.); long-nosed cattle lice, Linognathus vitui (L.); and short-nosed cattle lice, Haematopinus eurysternus (Nitzsch). Ciodrin and carbaryl were not as completely effective as diazinon and coumaphos when herds were sprayed only once. 0.125% rotenone plus 2.5% sulfur required 2 applications for adequate control. Concentrations of Ciodrin as low as 0.03-0.06% applied twice, were completely effective against the chorioptic mange mite, Chorioptes bovis (Hering), but not against lice. An electric mist blower was used to apply low-volume concentrates at 2-8 oz of mist/cow. Ciodrin emulsion, 1-2%, at 8 oz/cow, applied twice, completely controlled all the louse species previously mentioned as well as the chorioptic mange mite. In one of the 8 herds treated, a small number of the little blue louse, Solenopotes capillatus Enderlein, survived 6 weeks after the 2nd application. A similar application of 2% ronnel completely controlled 2 species of sucking lice. Rotenone, 0.5%, applied twice gave good but not complete louse control, and was not effective against the chorioptic mange mite. Ciodrin was tested also as a 2% solution in a livestock spray oil at 71-107 ml/cow and completely controlled cattle biting and sucking lice and chorioptic mange mites with 2 applications. Also effective was 83-150 ml/cow of 1 % Ciodrin plus 0.25% dichlorvos solution. Dichlorvos, 1 %, alone was effective against all louse species but not the chorioptic mange mite. Preliminary experiments indicated that 2% trichlorfon, 2% coumaphos, and 1% fenthion were effective when applied as a low-volume mist. Emulsions containing 8.3% Ruelene® (4-tert-butyl-2- chlorophenyl methyl methylphosphoramidate) or 5% fenthion, poured on the backs of cattle, reduced populations of the cattle biting louse and the long-nosed cattle louse. Two applications of Ruelenc did not completely control the cattle biting louse.
Document Type: Research Article
Publication date: December 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.