Efficacy of fenthion against the flea, Ctenocephalides felis, on the cat |
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| Authors: | M A Fisher M J Hutchinson D E Jacobs I G C Dick |
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| Institution: | Department of Veterinary Pathology, The Royal Veterinary College, Boltons Park, Potters Bar, Hertfordshire EN6 1NB;*Bayer plc, Veterinary Business Group, Eastern Way, Bury St Edmunds, Suffolk IP32 7 AH |
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| Abstract: | A controlled study was carried out in two replicated trials, each using three groups of domestic cats artificially infested with Ctenocephalides felis. In each trial three cats were treated with fenthion, three were treated with a dichlorvos/fenitrothion formulation, both at the recommended dose rate and the remainder acted as untreated controls. Good knockdown efficacy was evident 24 hours after both treatments. Efficacy values of 85 per cent or more were maintained for at least 15 days with fenthion and for less than eight days with dichlorvos/fenitrothion. |
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