International Journal of Plant Protection

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Evaluation of Newer Insecticides against Leaf Hopper on Bt Cotton


Affiliations
1 Cotton Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), India
2 Zonal Agriculture Research Station, Yavatmal (M.S.), India
     

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Evaluation studies were carried out for management of leaf hoppers on Bt cotton during 2012-13 at three different locations. The pooled results revealed that minimum population of leaf hoppers was recorded in the treatment fipronil 5 SC (0.075%) and it was at par with treatment diafenthiuron 50 WP (0.08%) and imidacloprid 30.5 SL (0.005%). Next best treatment was buprofezin 25 SC (0.05%). Significantly highest seed cotton yield of 19.43 q/ha was harvested in application of treatment fipronil 5 SC (0.075%) followed by diafenthiuron 50 WP (0.08%) and imidacloprid 30.5 SL (0.005%) with 18.66 and 18.19 quintal per hectar, respectively. Highest monetary return Rs. 33,409 per ha was also observed in the treatment fipronil 5 SC (0.075%) followed by imidacloprid 30.5 SL (0.005%) (Rs. 30113 per ha) and diafenthiuron 50 WP (0.08%) (Rs. 28340 per ha) whereas in terms of higher incremental cost benefit ratio, imidacloprid 30.5 SL (0.005%) was found superior which recorded 1: 13.3 followed by fipronil 5 SC (0.075%) (1: 8.9).

Keywords

Leaf Hopper, Bt Cotton, Fipronil, Imidacloprid, Diafenthiuron.
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  • Evaluation of Newer Insecticides against Leaf Hopper on Bt Cotton

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Authors

P. W. Nemade
Cotton Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), India
S. B. Deshmukh
Cotton Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), India
Jayashri D. Ughade
Zonal Agriculture Research Station, Yavatmal (M.S.), India

Abstract


Evaluation studies were carried out for management of leaf hoppers on Bt cotton during 2012-13 at three different locations. The pooled results revealed that minimum population of leaf hoppers was recorded in the treatment fipronil 5 SC (0.075%) and it was at par with treatment diafenthiuron 50 WP (0.08%) and imidacloprid 30.5 SL (0.005%). Next best treatment was buprofezin 25 SC (0.05%). Significantly highest seed cotton yield of 19.43 q/ha was harvested in application of treatment fipronil 5 SC (0.075%) followed by diafenthiuron 50 WP (0.08%) and imidacloprid 30.5 SL (0.005%) with 18.66 and 18.19 quintal per hectar, respectively. Highest monetary return Rs. 33,409 per ha was also observed in the treatment fipronil 5 SC (0.075%) followed by imidacloprid 30.5 SL (0.005%) (Rs. 30113 per ha) and diafenthiuron 50 WP (0.08%) (Rs. 28340 per ha) whereas in terms of higher incremental cost benefit ratio, imidacloprid 30.5 SL (0.005%) was found superior which recorded 1: 13.3 followed by fipronil 5 SC (0.075%) (1: 8.9).

Keywords


Leaf Hopper, Bt Cotton, Fipronil, Imidacloprid, Diafenthiuron.

References