author(s)
Mahantesh Kapasi, Bheemanna M, Vijaykumar Ghante and Amaresh YS

abstract
Laboratory experiments were carried out during 2014-15 and 2015-16 to study the baseline susceptibility of sulfoxaflor against the leafhopper population of major cotton growing districts of Karnataka, India. Among different districts studied, Yadgir and Raichur districts leafhopper population recorded higher LC₅₀ values of 23.84 and 22.79 ppm respectively, followed by Belagavi (19.66 ppm), Dharwad (18.48 ppm), Koppal (16.32 ppm), Haveri (16.03 ppm) and Mysore (14.18 ppm) districts during 2014-15. The similar trend was noticed during 2015-16 season. The comparison studies were made with Flonicamid 50 WG and Imidacloprid 17.8 SL for a population collected from Raichur district.