Assessment of environmental sensitivity of cockroaches in Bandar Abbas sewage system to poison Pyrethroids and Carbamates insecticides

Introduction: Bandar Abbas sewage system is one of the areas in great quality of cockroaches. In spite of passing a short time from exploitation of this system (since 1383), It is necessary considering the cockroaches abundance and the best way of fighting against this insect. Methods: In this investigation four poisons of delta metrine, sypermetrine, Permetrine and Sevin, were selected to test the rate of efficiency on caclerouches in Bandar Abbas sewag system. Results: The results of cockroaches trapping by random cluster sampling of Bandar Abbas sewage system showed that the most abundance of cockroaches is concentrated on the east towns of the city (Pegah, Tohid, etc). In this investigation 458 cockroaches were trapped and all of them were American kind of cockroaches. Among tested poisons, the most effective in destroying of cockroaches was delta metrine by doses of 3.125µl/m². Conclusion: Hot and humid climate in Bandar Abbas is the best conditions for cockroaches. Specially American cockroach’s Dominant population in the city's sewage system is allocated and Delta metrine, Sypermetrine, Permetrine and Sevin pesticides were effective for their removal.