Efficacy of different Fungicides against Erysiphe cichoracearum DeCandolle causing Powdery Mildew of Okra (Abelmoschus esculentus (L.)

Author: Chattannavar S.N., B. Swathi, Shridevi T. and Vinayaka Bannur

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Abstract

Okra is one of the important vegetable grown across the country. It is severely infected by Powdery mildew caused by Erysiphe cichoracearum D.C causing yield loss varied from 17.0 to 86.6 per cent). Management of powdery mildew is becoming cumbersome due to development of fungicidal resistance to pathogen with this view, field experiment was conducted to test potentiality of new fungicide molecules against powdery mildew diseases, the fungicides tested were found to be superior over control but among the different fungicides tested, Flupyram 17.7% + Tebuconozole 17.7 % SC (Luna experience) at 0.125 per cent concentration and was found to be significantly effective by recording minimum disease intensity (48.52%) with maximum disease control (38.80%) coupled with higher Okra yield (92.15q/ha). While, spraying wettable Sulphur 80% WP (0.375%) was found to be least effective in reducing disease with 69.17% disease intensity. Hence the Flupyram 17.7% + Tebuconozole 17.7 % SC (Luna experience) at 0.125 per cent concentration can be used for the effective control of powdery mildew in okra.

Keywords

Fungicides, Okra, powdery mildew, Erysiphe cichoracearum, Luna experience

Conclusion

It is noteworthy that, from present investigation for the management of powdery mildew disease in Okra exhibited that all the evaluated fungicides have shown a promising efficacy as compared to the control against the disease. However, out of the treatments, the Flupyram 17.7% + Tebuconozole 17.7 % SC (Luna experience) at 0.125 per cent concentration shown better controlling potential against the disease with (38.80 %). with Okra yield of 92.15 q/ha. Therefore, Flupyram 17.7% + Tebuconozole 17.7 % SC (Luna experience) at 0.125 per cent concentration is recommended for management of powdery mildew disease of Okra.

References

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How to cite this article

Chattannavar S.N., B. Swathi, Shridevi T. and Vinayaka Bannur (2023). Efficacy of different Fungicides against Erysiphe cichoracearum DeCandolle causing Powdery Mildew of Okra (Abelmoschus esculentus (L.). Biological Forum – An International Journal, 15(5): 512-516.