Efficacy of Biocontrol Agents in the Management of Onion Thrips, <I>Thrips tabaci</I> (Lind.) on Onion
Authors
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Department of Agricultural Entomology, UAS, GKVK, Bengaluru, 560065, Karnataka
S. Sudhir Kumar -
Department of Agricultural Entomology, UAS, GKVK, Bengaluru, 560065, KarnatakaC. T. Ashok Kumar
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Department of Agricultural Entomology, UAS, GKVK, Bengaluru, 560065, KarnatakaC. Shivaraju
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Department of Agricultural Entomology, UAS, GKVK, Bengaluru, 560065, KarnatakaM. Thippaiah
DOI:
https://doi.org/10.18311/jbc/2012/3515Keywords:
<I>Chrysoperla zastrowi sillemi</I>, <I>Beauveria bassiana</I>, Onion, Thrips and <I>Verticillium lecanii</I>.Abstract
Application of Beauveria bassiana (Bals) @ 1x 109 spores/ml twice was found to be best treatment with lowest mean thrips population (9.53/plant) with highest per cent reduction (64.15) followed by Verticillium lecanii (Zimmerman) @ 1x109 spores/ml (20 and 30 DAP) with 49.89 per cent reduction. Chrysoperla zastrowi sillemi 20,000 /ac (20 DAP) + B. bassiana @ 1x109 spores/ml (30 DAP) with 41.50 per cent reduction was found to be next best treatment. The treatment with C. z. sillemi @ 20,000 /ac (20 and 30 DAP) was least effective treatment with lowest per cent reduction (28.59).
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Published
2012-07-14
How to Cite
Sudhir Kumar, S., Ashok Kumar, C. T., Shivaraju, C., & Thippaiah, M. (2012). Efficacy of Biocontrol Agents in the Management of Onion Thrips, <I>Thrips tabaci</I> (Lind.) on Onion. Journal of Biological Control, 26(2), 79–84. https://doi.org/10.18311/jbc/2012/3515
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