Larvicidal Potential of Conidia Suspension of Aspergillus flavus against Anopheles Mosquitoes

Abstract

Abstract: Aim: This study was aimed at investigating the larvicidal potential of the conidia suspension of Aspergillus flavus against Anopheles mosquitoes. Method: Aspergillus flavus was isolated from soil using soil suspension procedures and was identified using morphological characteristics. Bioassay was performed to determine the efficacy of Aspergillus flavus conidial suspension against early 4th instar larvae of Anopheles mosquito using WHO-2005 protocol with slight modifications. Results: Four different concentration of conidial suspension; 3.3×106, 3.3×105, 3.3×104 and 3.3×103 conidia/ml were tested, and the results show that; mortality increases with increase in conidial concentration and exposure time. Conclusion: These results indicated that Aspergillis flavus conidia suspension are pathogenic to immature stage of Anopheles mosquito and could be suggested as a biological control for mosquito management.