Comparison of the larvicidal and adult mosquito attractant efficacy between straw mushroom Volvariella volvacea extract and octenol (1-octen-3-ol) on mosquito vectors (Diptera: Culicidae)

Abstract

Mosquito-borne diseases are a major public health issue, especially in tropical and subtropical regions. In this study, we compared the efficacy of Volvariella volvacea (Bull. ex Fr.) mushroom, an edible, commercially available mushroom species grown in Thailand with octenol (1-octen-3-ol) as a standard substance to kill larvae and attract adult, including Aedes aegypti Linnaeus and Culex sitiens Wiedemann, mosquitoes. Five concentrations of extract, including 120, 12, 1.2, 0.12, and 0.012 mg/l were selected to test the effectiveness of killing mosquito larvae. Three concentrations of extract, including 100, 10, and 1 mg/l were selected to test the effectiveness of adult female mosquito attraction. The result of the comparison of the larvicidal efficacy between V. volvacea extract and octenol in each concentration, showed that there were differences in number of dead larvae in almost all the concentrations in testing with octenol (p < 0.05), while in the adult mosquito attraction bioassay, V. volvacea extract attracted the highest number of adult female A. aegypti and C. sitiens at the 10 mg/l concentration followed by 1 and 100 mg/l, as well as the effect of octenol. The statistical comparison found that the efficiency of attracting A. aegypti and C. sitiens mosquitoes in all the concentrations of V. volvacea extract was different from octenol (p < 0.05).