Relative susceptibility of life stages of cotton whitefly Bemisia tabaci (Genn.) to pyriproxyfen

Mahapatro G K, Kelageri S S, Subramanian S, Chitra Srivastava, Rajna S
2022 Indian Journal of Entomology  
The relative susceptibility of lifestages of seven Bemisia tabaci (Genn.) populations from major cotton growing regions in India to pyriproxyfen has been studied. The results revealed that adults were unaffected at significantly high concentration ie., 200 mg/ l (field recommended dose, <10% mortality), hence adult bioassay was not done. Indore and Amravati populations were the most and least susceptible ones for both egg and nymphal stages; and all the populations were found susceptible to
more » ... proxyfen with RR ratio of <5, except for Amravati one, revealing low level of resistance with RR ratio (5.04- egg; 5.09- nymph) computed deploying the LC<sub>90</sub> and LC<sub>50</sub> values.
doi:10.55446/ije.2021.370 fatcat:7xlr4tjg6rhsrmh6wkt7yxb72e