M D Whiteker

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A 20% solution of fenthion applied to hogs in one spot on the back at the rate of 2 mi/45.5 kg of body weight was effective in controlling hog lice on feeder hogs, dry sows on pasture and sows nursing pigs. Lice were controlled on the nursing although they were not directly treated. Fenthion was superior in lice control to the standard .25% crotoxyphos +(More)
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