Field toxicity of anticoagulant rodenticides against the commensal rodents Rattus norvegicus, R. rattus and Acomys cahirinus in Egyptian villages.

The present investigation was conducted to study the effectiveness of three anticoagulants, bromadiolone as a second generation and chlorophacinone as a first generation which was activated by adding antibacterial sulfaquinoxaline, as well as tracking powder coumachlor against three commensal rodents in Egyptian villages. Bait containing 0.005% bromadiolone achieved complete control against Rattus rattus and R. norvegicus in 19 days and 13 days, respectively, but it was ineffective against Acomys cahirinus. Baiting with 0.006% chlorophacinone plus 0.019% sulfaquinoxaline achieved complete control against R. rattus, R. norvegicus and A. cahirinus in range 11-15, 8-10 days and 15-20 days and 15-20 days, respectively. About 81% control was achieved by 1% coumachlor against R. norvegicus, but about 63% against A. cahirinus