Residues in milk of cows after spot treatment with32P-fenthion
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Fenthion spot treatment for control of the hog louse.
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 + vapona spray. (
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ژورنال
عنوان ژورنال: New Zealand Journal of Experimental Agriculture
سال: 1975
ISSN: 0301-5521
DOI: 10.1080/03015521.1975.10425825