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Integrated Management of Pulse Beetle, Callosobruchus chinensis L. (Coleoptera: Chrysomelidae) on Stored Pigeonpea Seeds

Author: Manja Naik C., Doddabasappa, B., Mutthuraju G.P. and Udagi B.S.

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Abstract

The experiment conducted on management of pulse beetle, Callosobruchus chinensis Linn. (Coleoptera: Chrysomelidae) during 2020 to 2021. Pulse beetle is a major constraint in production which inflicts severe losses both in the field and storage. The study revealed that the pigeonpea plants sprayed with emamectinbenzoate 5 SG @0.3g / l at the time of pod maturity has recorded the minimum seed damage of 0.25% at 8 weeks after storage of pigeonpea seeds. The seeds exposed for sun light in clear polythene bags for 4 hours for 6 days registered least seed damage of 10.66%. In storage pigeonpea seeds treated with insecticide spinetoram 11.7% SC @ 6.50 ml/kg seeds azadirachtin 10,000ppm @ 6.50 ml/kg seed and deltamethrin 2.8EC @ 0.04 ml/kg seed were effective in suppressing the bruchid, C.chinensis. Whereas, maximum seed damage of 21.33 per cent and minimum seed quality parameters were observed in untreated control. The beetle population can be suppressed by adopting integrated pest management approaches.

Keywords

Callosobruchus chinensis, Cajanus cajan, Azadirachtin, Solarization, Insecticides

Conclusion

The study can be concluded that, the pigeonpea plants sprayed with emamectin benzoate 5 SG @0.3g / l at the time of pod maturity has recorded the minimum seed damage of 0.25% at 8 weeks after storage of pigeonpea seeds. The seeds exposed for sun light in clear polythene bags for 4 hours for 6 days registered least seed damage of 10.66%. In storage pigeonpea seeds treated with insecticide spinetoram 11.7% SC @ 6.50 ml/kg seeds azadirachtin 10,000ppm @ 6.50 ml/kg seed and deltamethrin2.8EC @ 0.04 ml/kg seed were effective in suppressing the bruchid, C. chinensis. Whereas, maximum seed damage of 21.33 per cent and minimum seed quality parameters were observed in untreated control. The bruchid population was suppressed by adopting integrated pest management approaches.

References

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How to cite this article

Manja Naik C., Doddabasappa, B., Mutthuraju G.P. and Udagi B.S. (2023). Integrated Management of Pulse Beetle, Callosobruchus chinensis L. (Coleoptera: Chrysomelidae) on Stored Pigeonpea Seeds. Biological Forum – An International Journal, 15(9): 602-606.