INSECTICIDAL ACTIVITY OF PROPOXUR-IMPREGNATED AND CARBARYL-IMPREGNATED FLEA COLLARS AGAINST CTENOCEPHALIDES-FELIS

  • 1 January 1977
    • journal article
    • research article
    • Vol. 38  (7) , 923-925
Abstract
Ten dogs were fitted with 10% propoxur-(0-isopropoxyphenyl methylcarbamate) and 10 dogs were fitted with 16% carbaryl-(1-naphthyl-N-methylcarbamate) impregnated flea collars. Ten cats were fitted with carbaryl-impregnated flea collars. There were 5 control animals for each trial. Insecticidal activity against experimental infestations with the cat flea [Ctenocephalides felis (Bouche)] was evaluated. The propoxur collars on dogs reduced the flea populations by 90% within 2 days of infestation for at least 13 wk. By the 16th wk, the flea population was reduced 65% in 2 days and 87% in 7 days. In subsequent infestations, efficiency was less than 80% after 7 days. Carbaryl collars on dogs reduced the flea population by as much as 80% in 2 days for a period of 16 wk. An efficiency of at least 80% at 7 days was maintained for 17 wk. Carbaryl collars on cats reduced the flea population within 2 days by 80% or more for a period of at least 19 wk.sbd.the last experimental infestation.