Although being of less importance to the incidence of the vector-borne disease than mosquitoes, houseflies (Musca domestica) are mechanical transmitters of the disease. The chemical control carried out until now has brought about the emergence of resistance of houseflies against DDT and many other insecticides including organophosphates and carbamates. In order to look for an alternative insecticide which can control houseflies, a study was performed on the efficacy of insecticide belonging to the synthetic pyrethroid group containing 30 g/l of the active substance such as alphacypermethrin. Four dosages of insecticide with active ingredient of 30 g/l alphacypermethrin at dosages of 17.5 ml/ha, 35 ml/ha, 50 ml/ha and 70 ml/ha respectively wereused by fogging against houseflies kept in cages. The result showed that dosages of 35 ml/ha, 50 ml/ha and 70 ml/ha were all effective to kill M. domestica.
Aedes aegypti, vector of DHF, control has been relied on insecticides to prevent the disease transmission. Vector resistance will be speeded up by frequent use of insecticides; therefore alternative insecticides should be sought and tested. In this study, an efficacy test of insecticide containing active ingredient of d-allethrin 10% and permethrin 20% against caged Ae. aegypti hang indoor and outdoor was conducted by thermal fogging application. Both concentrations of 5 ml and 7,5 ml by product per liter diesel oil showed a knockdown effect of about 98 – 100% in less than 60 minutes. After 24 hours holding period at the laboratory about 98 – 100% of Ae.aegypti mortality was observed. It was concluded that the insecticide was effective in killing Ae. aegypti.
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