Journal of Hygiene

Research Article

Laboratory evaluation of bromadiolone as a rodenticide for use against warfarin-resistant and non-resistant rats and mice

R. Redferna1 and J. E. Gilla1

a1 Ministry of Agriculture, Fisheries and Food, Tolworth Laboratory, Hook Rise South, Tolworth, Surbiton, Surrey


Laboratory feeding tests were carried out to determine the efficacy of the anticoagulant rodenticide bromadiolone against Rattus norvegicus, R. rattus and Mus musculus. Using 0·005% bromadiolone, complete kills of R. norvegicus and R. rattus not resistant to warfarin were obtained after exposure to the poison for 1 and 5 days respectively. Warfarin-resistant R. norvegicus were all killed in 4 days, and resistant M. musculus in 12 days. In general, the results resembled those obtained with difenacoum. Acceptance of bromadiolone was very good.

(Received August 07 1979)