Vol. 11, Issue 12 (2022)

The research was conducted during kharif seasons of 2017-18, 2018-19 and 2019-2020 at Seven major cotton growing districts (viz. Parbhani, Hingoli, Nanded, Jalna, Aurangabad, Osmanabad & Beed) in Marathwada region of Maharashtra under Crop Pest Surveillance and Advisory Project (CROPSAP). The severity of whitefly population is becoming a major concern to transgenic cotton farmers. Keeping this in view scientific survey of white fly (Bemisia tabaci Gennadius) incidence on Bt cotton was carried out from last Three years (2017-18 to 2019-20), in Seven major cotton growing districts (viz. Parbhani, Hingoli, Nanded, Jalna, Aurangabad, Osmanabad & Beed) in Marathwada region of Maharashtra under Crop Pest Surveillance and Advisory Project (CROPSAP) by using ICT tools and total 171 ETL based advisories were issued twice in a week to monitor the pest. On the basis of taluka wise roving survey, the district wise mean data stated that during 2017-18, Nanded district was severely infested by whiteflies (1.65) followed by Jalna (1.09) and Parbhani (0.70). During 2018-19, Jalna district recorded highest population of whitefly (1.02) followed by Parbhani (0.54) and Hingoli (0.42). Whereas during 2019-20, Parbhani district recorded highest population of whitefly (0.22) followed by Jalna (0.19) and Aurangabad (0.17). On the basis of three years survey data, the severity of whiteflies incidence was more during 2017-18.