tailieunhanh - Incidence of whiteflies and viral diseases of bittergourd (Momordica charantia L.) in Southern Karnataka, India

Surveys conducted on the incidence of whiteflies (Bemisia tabaci Gen.) and viral diseases on bitter gourd at Bengaluru, Mandya, Mysuru, Tumkur, Kolar and Chikkaballapur districts of South Karnataka during 2015-16 and 2016-17. In2015-16Kharif, Disease Incidence (DI) ranged from to and Vulnerability Index (VI) to a whitefly population of to per plant in Tumakuru and Mandya districts respectively. In rabi season, disease incidence ranged from to and vulnerability index to with a whitefly population of to per plant in Mysore and Chikkaballapur districts. During 2016-17, in Kharif, disease incidence ranged from to and vulnerability index to with a whitefly population of to per plant in Mysuru and Mandya districts, respectively. In rabi season, disease incidence ranged from to and vulnerability index was to with a whitefly population of to per plant in Mysore and Kolar districts respectively. A positive correlation with disease incidence and whitefly population on bitter gourd was obtained. The activity of whiteflies and the viral disease incidence recorded higher in rabi than in kharif. | Incidence of whiteflies and viral diseases of bittergourd (Momordica charantia L.) in Southern Karnataka, India

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