Efficacy of biopesticides and botanicals against hadda beetle, (Henosepilachna vigintioctopunctata Fab.) on Indian ginseng
Biopesticides against Hadda Beetle in Ginseng
DOI:
https://doi.org/10.21921/jas.v13i01.15272Keywords:
Indian ginseng, Azadirachtin, Neem seed kernel extract, Karanj seed extractAbstract
The present study investigated “Efficacy of biopesticides and botanicals against Hadda beetle, Henosepilachna vigintioctopunctata (Fab.) on Indian ginseng, Withania somnifera (L.) Dunal” at Sri Karan Narendra Agriculture University, Jobner, Rajasthan during Kharif, 2021. Out of eight biopesticides and botanicals tested against hadda beetle on Indian ginseng crop, revealed that azadirachtin (0.03 EC) 5 ml/ l proved to be most effective followed by Neem oil and Neem seed kernel extract (5%). The treatment of Beauveria bassiana (1.15 WP), Lecanicillium lecanii (1.15 WP) and Metarhizium anisopliae (1.15 WP) ranked in middle order of efficacy, while the plant products, viz., Karanj seed extract (5.0 %) and Karanj oil proved to be the least effective. The highest benefit cost ratio of 30.81 was obtained from Neem oil treated plots followed by B. bassiana 1.15 WP (12.52) and Azadirachtin (11.47), while lowest (1.36) in the KSE 5% treated plots.
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