Abstract
For fleas and ticks, 180 dogs were examined in Kanagawa Prefecture, Japan, in August, 1986. Ctenocephalides canis was detected from 74 dogs (41.1%), C. felis from 23 dogs (12.8%), and Haemaphysalis flava from 5 dogs (2.8%).
Twenty dogs infested by more than 100 fleas and/or by ticks were treated with 1% dust of a carbamate insecticide, propoxur (“Bolfo®1% dust”, Bayer Japan Ltd., Tokyo, Japan). Fleas and ticks were eliminated so well that none of them were detected on the next day of treatment. On the 7th day after treatment, however, C. canis was detected from 6 of the 20 dogs. From these results, it was concluded that 1% dust of propoxur was very efficacious against fleas and ticks on dogs even when infested by a large number of fleas, although no great residual efficacy was expected.
