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Effect of Cattle Breed and Flucythrinate-impregnated Ear Tags on Horn Fly (Diptera: Muscidae) Control on Yearling Heifers

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Horn fly, Haematobia irritans (L.), counts were reduced 96–97% when Angus × Hereford (A × H) and Brahman × Hereford (B × H) yearling heifers were tagged with f1ucythrinate-impregnated ear tags. Horn fly populations on B × H heifers were 67–75% less than on A × H heifers. Correlations and regressions of average fly count on weight gain, hip height, tail bone length, brush length, and back-fat thickness were low. Bovine keratocon-junctivitis did not occur among B × H heifers and was reduced by tagging A × H heifers. Weight gains of A × H heifers were 6% greater when they were tagged, but tagging did not increase weight gains of B × H heifers.

Document Type: Research Article

Publication date: October 1, 1987

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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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