Comparative Field Performance of Recent Insecticide Molecules Against Major Sucking Pests in Hybrid Cotton
Author: Niranjan Mandi, Bhabani Shankar Nayak, Uttam Kumar Behera, Shanowly Mondal Ghosh, Lalatendu Nayak and Rajib Tudu
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Abstract
A field experiment was conducted during the Kharif season of 2020 and 2021 at the Regional Research and Technology Transfer Station (OUAT), Bhawanipatna, Odisha, to evaluate the Comparative field performance of recent insecticide molecules against major sucking pests in hybrid cotton. The experiment was laid out in a randomized block design with eight treatments, including Spinetoram 11.7% @ 50g a.i./ha, Pyriproxyfen 10% EC @ 10g a.i./ha, Dinotefuran 20% SG @ 30g a.i./ha, Spiromesifen 240SC (22.9%) @ 144g a.i./ha, Flonicamid 50% WG @ 75g a.i./ha, Imidacloprid 200SL (17.8%) @ 25g a.i./ha and an untreated control in three replications. Among the treatments, Flonicamid 50% WG @ 75g a.i./ha recorded the lowest population of jassids (0.71/3 leaves), aphids (1.28/3 leaves) and thrips (0.32/3 leaves) after two sprays, followed by Spiromesifen 240SC @ 144 g a.i./ha. Imidacloprid 200SL @ 25g a.i./ha was most effective in reducing whitefly incidence (0.33/3 leaves), which was statistically on par with Spiromesifen and Flonicamid. The highest seed cotton yield (26.54 q/ha) was also recorded in Flonicamid-treated plots, showing a 40.95% increase over the untreated control followed by Spiromesifen (25.64 q/ha). The results indicate that Flonicamid 50% WG is highly effective in managing sucking pests and enhancing seed cotton yield in hybrid cotton cultivation
Keywords
Hybrid cotton, sucking pests, new insecticides, efficacy, seed cotton yield
Conclusion
The present study concludes that sucking pests of cotton like aphids, jassids, thrips and whitefly can be effectively managed by applying Flonicamid 50% WG @ 75g a.i./ha at the economic threshold level (ETL), followed by two consecutive sprays at 15 days intervals. This treatment not only provided the most effective pest control but also resulted in the highest seed cotton yield of 26.54 q/ha, representing a 40.95% increase over the untreated control
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How to cite this article
Niranjan Mandi, Bhabani Shankar Nayak, Uttam Kumar Behera, Shanowly Mondal Ghosh, Lalatendu Nayak and Rajib Tudu (2025). Comparative Field Performance of Recent Insecticide Molecules Against Major Sucking Pests in Hybrid Cotton. Biological Forum, 17(8): 138-143