Horn fly (Diptera: Muscidae) control on beef cows with permethrin-impregnated ear tags and effect on subsequent calf weight gains

Autor: S. S. Quisenberry, D. R. Strohbehn
Rok vydání: 1984
Předmět:
Zdroj: Journal of economic entomology. 77(2)
ISSN: 0022-0493
Popis: Permethrin-impregnated ear tags effectively reduced horn flies during the 1981 and 1982 fly seasons by 96 and 99%, respectively. Calves nursing treated cows compared with calves nursing untreated control cows gained 6.7 kg ( P < 0.05) more in 1981 and 4.4 kg ( P
Databáze: OpenAIRE
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