International Journal of Chemical Studies
Vol. 6, Issue 2 (2018)
Evaluation of fungicides for management of powdery mildew disease of okra (Abelmoschus esculentus Moench)
Author(s): GU Waychal, BC Game and SD Jagtap
Abstract: Considering the heavy losses caused by powdery mildew disease on okra, a study was undertaken to evaluate some fungicides for management of disease. Spraying of seven fungicides viz., sulphur 80WP, difenoconazole 25EC, hexaconazole 5EC, tebuconazole 250EC, myclobutanil 10WP, dinocap 48EC and potassium bicarbonate was undertaken immediately on appearance of disease symptoms on okra plants. Fungicide difenoconazole was found superior over other fungicides in reducing the per cent disease intensity of powdery mildew followed by the treatment of hexaconazole, tebuconazole and myclobutanil at the given concentration. All the fungicides resulted in significant decrease in powdery mildew disease intensity as compared to control. Among the fungicides evaluated, maximum per cent disease control was recorded in the plots protected with difenoconazole (69.41%) which was at par with hexaconazole (64.04%) followed by tebuconazole (55.64%) and myclobutanil (48.30%). The fungicidal treatments also resulted in the increase in okra yield. Treatment with difenconazole resulted in maximum yield (131.8 q ha-1) which was at par with the treatments of hexaconazole (126.5 q ha-1) and tebuconazole (116.8 q ha-1). The sterol biosynthesis inhibiting (triazole group) fungicides were found more effective over others in management of powdery mildew disease of okra.
Pages: 325-327 | 511 Views 4 Downloads
How to cite this article:
GU Waychal, BC Game, SD Jagtap. Evaluation of fungicides for management of powdery mildew disease of okra (Abelmoschus esculentus Moench). Int J Chem Stud 2018;6(2):325-327.