| Autor: |
GUPTA, SAURAV, SHARMA, NEERJA, SINHA, ABHAY KUMAR, MISHRA, SUNIL KUMAR |
| Předmět: |
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| Zdroj: |
International Journal of Farm Sciences; 2023, Vol. 13 Issue 3, p65-68, 4p |
| Abstrakt: |
Gram pod borer (Helicoverpa armigera) is a very destructive and serious pest of gram and causes serious damage to the crop. Krishi Vigyan Kendra, Samba, Jammu and Kashmir conducted on-farm trials (OFTs) during rabi 2021-22 and 2022-23 at farmers' fields to assess the efficacy of a new insecticide for the management of gram pod borer in gram. Treatments used were chloropyriphos 20EC @ 2 ml per litre of water (farmers' practice), cypermethrin 25EC @ 1.5 ml per litre of water (recommended) and emamectin benzoate (Missile 5SG) @ 0.4 g per litre of water (intervention). During 2021-22, in case of emamectin benzoate (Missile 5SG) @ 0.4 g per litre of water, 76.34 per cent reduction in damage to pods was observed over farmers' practice (chlorpyriphos). The yield of gram was 92.31 per cent higher due to the emamectin benzoate over farmers' practice. During 2022-23, emamectin benzoate caused 78.26 per cent less damage to gram over farmers' practice. There was an increase of 82.14 per cent in yield due to emamectin benzoate application over farmers' practice. In 2021-22, emamectin benzoate resulted in B-C ratio of 4.51 as against 2.52 in cypermethrin and 1.86 in chlorpyriphos treatments. In 2022-23, emamectin benzoate gave a B-C ratio of 4.62 in comparison to 2.63 and 2.08 in cypermethrin and chlorpyriphos treatments respectively. Therefore, the use of emamectin benzoate (Missile 5SG) @ 0.4 g per litre of water can be recommended for the control of pod borer in gram crop under rainfed conditions of Samba, Jammu and Kashmir. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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