Metiram 70 WG @ 750, 1000, 1250 and 1500 g ha~(-1) in comparison with carbendazim 50 WP (125 g ha~(-1)) and propiconazole 25 EC (500 mL ha~(-1)) along with untreated control were evaluated in randomized block design. Treatments replicated thrice were imposed at 21 days interval with first spray starting immediately after the appearance of Alternaria leaf spot. Metiram 70 WG @ 3000 g ha~(-1) was tested for phytotoxicity alone. Highest reduction in Alternaria blight and Corynespora leaf spot was recorded with metiram 70 WG @ 1500 g ha~(-1) (84.1 and 77.9) followed by 1250 g ha~(-1) (80.1 and 72.1). Carbendazim 50 WP @ 250 g ha~(-1) resulted in reduction of anthracnose (84.1) and grey mildew (80.9) followed by metiram 70 WG 1500 g ha~(-1) (65.2 and 78.7). Rust was reduced to the tune of 68.6 with metiram 70 WG @ 1500 g ha~(-1) followed by propiconazole 25 EC @ 500 mL ha~(-1) (63.6). Highest yield increase of 23.1 was obtained with metiram 70 WG 1500 g ha~(-1) followed by propiconazole (22.8) and metiram 70 WG 1250 g ha~(-1) (21.6). Highest dose did not induce any phytotoxic symptoms. These results indicate broad spectrum activity of metiram 70 WG against fungal diseases in cotton.
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