Bioefficacy of biopesticides and novel insecticides against Leucinodes orbonalis Guenee on brinjal under mid hill conditions of Himachal Pradesh
DOI:
https://doi.org/10.48165/Keywords:
Bioefficacy, biopesticides, brinjal, incremental output-input ratio (IOIR), Leucinodes orbonalisAbstract
Studies on the bioefficacy of biopesticides and novel insecticides against shoot and fruit borer, Leucinodes orbonalis were undertaken at CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur during 2015 and 2016. The results on bioefficacy showed that chlorantraniliprole resulted in minimum shoot infestation followed by cyantraniliprole, lambda-cyhalothrin, thiacloprid, indoxacarb, azadirachtin, melia and eupatorium during 2015, whereas, during 2016 the shoot infestation was minimum in cyantraniliprole followed by chlorantraniliprole, thiacloprid, lambda-cyhalothrin, indoxacarb, azadirachtin, melia and eupatorium. Fruit infestation was found minimum in chlorantraniliprole followed by cyantraniliprole, thiacloprid, lambda-cyhalothrin, indoxacarb, azadirachtin, melia and eupatorium during both the years. Among different treatments highest fruit yield was recorded in chlorantraniliprole (75.25q/ha). Lambda-cyhalothrin resulted in highest IOIR (15.87) in the present study as it is cheaper insecticide as compared to others.Hence, it is concluded that all the insecticides evaluated are effective against L. orbonalis and can be recommended for its control.
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