Abstract
Collars impregnated with dichlorvos, naled, or stirofos on Persian cats for 10 weeks were tested against the cat flea, Ctenocephalides felis (Bouche). Both the stirofos collar and the naled collar were ineffective, whereas the dichlorvos collar gave good to excellent control. There were no adverse reactions to the stirofos collar, but the dichlorvos collar caused excessive salivation, from which the cat recovered after the collar was removed. After 9 weeks, the cat wearing the naled collar died with signs of organic phosphate toxicosis. This paper reviews the literature on flea collars.Downloads
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