EVALUATION OF FLEA CONTROL STRATEGIES USING FIPRONIL ON CATS IN A CONTROLLED SIMULATED HOME-ENVIRONMENT

Three groups of six cats were kept in similar carpeted pens in which a self-replicating population of Ctenocephalides felis had been establi shed. One group was left untreated, but the other groups were treated every 28th day with 0.5 ml of a 10 per cent fipronil spot-on formulati on, and the cats in one of the treated groups also wore a methoprene c ollar. No fleas were found on any of the treated cats, either during t he first 13 weeks of the study, when heavy flea burdens were developin g in the control pen, or over the next 11 weeks when a declining numbe r of fleas was present on the control group.