Efficacy of Insecticides Against Pink Stem Borer Sesamia Inferens Walker Infesting Barnyard Millet Echinochloa Frumentacea
2022
Roopika, M | Srinivasan, G. | Shanthi, M
Pink stem borer Sesamia inferens causes deadheart and white ear symptoms by boring into stem and peduncle region causing yield losses in barnyard millet. A field trial to find out efficacy of cartap hydrochloride 4G, chlorantraniliprole 18.5SC, flubendiamide 20WG, emamectin benzoate 5SG, spinetoram 11.7SC and phorate 10G against S. inferens was carried out in Tamil Nadu. Spinetoram 11.7SC (92.63%) was the most effective followed by flubendiamide 20WG (90.56%). Phorate 10G (81.57%) was found to be less effective. Plots treated with spinetoram 11.7SC gave maximum yield (9.57 q/ ha) with the cost benefit ratio of 1:3.08 followed by flubendiamide 20% WG (8.91 q/ ha) with the cost benefit ratio of 1:3.42. Phorate 10 G was the least performing treatment with 29.62% increase in yield over control with the cost benefit ratio of 1:2.84. Control plot recorded 44.5% less yield when compared to treated plots.
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