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Show men warned aaainst nests eraI of the newer sys- "isccticides are giving " control of cattle . M lice. Farmers and "sinS them will want . ' their animals soon. F' Knowlton, Utah werSity' Profesr f s 6. emeritus, empha- :'th fdvanta&e of early Zl"The ear,ier iimli hese insecticides PH after the adult i heel fly and bomb fly adults die off, the better it is for the animals being treated. "Coumaphos (Co-Ral), rue-lene, rue-lene, ronnel (Trolene) and tri-chlorfon tri-chlorfon (Neguvon) are the materials now most commonly used against this livestock pest. When applied as a spray or dip, they also give excellent control of lice. However, these materials mater-ials should not be used on cows being milked or soon to freshen," he cautioned. |