Evaluation of fungicides against leaf spot of bhendi incited by Cercospora abelmoschi under field conditions

Abstract

Among eight fungicides evaluated against Cercospora leaf spot disease of bhendi under field conditions, Propiconazole 25 EC (0.1%) was found significantly superior in controlling the disease. The percent disease index (PDI) was significantly less (11.79) in Propiconazole 25 EC sprayed plot followed by Carbandizim 12% + Mancozeb 63% WP (16.31) and Cymoxanil 8% + Mancozeb 63% WP (19.28) compared to other fungicides and unsprayed control plot (87.85 PDI) respectively. Correspondingly, a maximum fruit yield of 16844.44 kg/ha was recorded in plot in which Propiconazole 25 EC was received followed by Carbandizim 12% + Mancozeb 63% WP (15,888.89 kg/ha) and Cymoxanil 8% + Mancozeb 63% WP (15,500.00 kg/ha) sprayed plots respectively. Whereas, in unsprayed control plot a minimum fruit yield of 11,022.22 kg/ha was recorded. The B:C ratio was also found higher in propiconazole 25EC (1:3.09) Carbandazim 12% + Mancozeb 63% (1:2.58) and Cymoxinil 8% + Mancozeb 63% WP (1:2.37) sprayed plots compare to other fungicides and untreated control plots.