Evaluation of Insect Growth Regulators Against Leafhoppers and Whiteflies in BT Cotton
DOI:
https://doi.org/10.55446/IJE.2021.55Keywords:
Cotton, Amrasca (sundapteryx) biguttula, Bemisia tabaci, insect growth regulators, lady bird beetle, chrysopids, natural enemiesAbstract
Studies were conducted to evaluate efficacy of insect growth regulators against leafhoppers Amrasca (Sundapteryx) biguttula, and whiteflies Bemisia tabaci (Gennadius) on cotton at the Department of Entomology, Dr. PDKV, Akola during 2019-2020. Overall four sprays were given out and the data obtained revealed that buprofezin 25%SC was found promising against leafhopper population. However, this treatment was found statistically similar to pyriproxyfen 10%EC and buprofezin 25%SC + NSKE 5%. The application of pyriproxyfen 10%EC, pyriproxyfen 10%EC + NSKE 5% and buprofezin 25%SC proved statistically equal in reducing whiteflies population. The treatments were found to be safe to the natural enemy activity. The highest seed cotton yield was obtained in the plots sprayed with buprofezin 25%SC (13.40 q/ha).
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