Effect of toxic baits on killing German cockroach ,Blattella germanica (L.) and Brownbanded Cockroaches Supella supellectilium (s.) (Dictyoptera Blattellidae)

Studies on the efficacy of three toxic baits Chlorpyrifos, Abamection and Borick acid against German cockroach B. germanica (L.) and brown-banded S. supellectilium (S.) cockroaches showed that the mortality reached to 88.2, 73.8, 50.6% in German cockroaches exposed to mentioned toxic baits respectively. It was also found that the effectiveness of these toxic baits on German cockroaches varied from one stage of development to another, the gravid females were the least affected stage to the toxic baits used in this study. Results also indicated that toxic baits used against German cockroaches had a similar efficacy on Brown-banded cockroaches.