1992•Journal of Entomological ResearchRequires access

Rapid development of resistance in Myzus persicae Sulz. to cypermethrin

Swaran Dhingra, Daya Shanker Singh

Abstract

Detection of development of resistance in Myzus persicae Sulz. to phosphamidon, and synthetic pyrethroid cypermethrin was studied in the laboratory. Response of the population of M. persicae to insecticides showed LC50 values of cypermethrin and phosphamidon as 0.024 and 0.056%, respectively. A comparison of LC50 values obtained during 1988 and 1992 revealed that M. persicae had developed 5-fold resistance to cypermethrin. However, the aphid pest showed only 1.8-fold resistance to phosphamidon. This suggests that the development of resistance to cypermethrin was rather faster as compared to phosphamidon.

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Key concepts: Myzus persicae, Phosphamidon, Cypermethrin, Population, Biology, Pyrethroid, Insecticide resistance, Toxicology