Six fungicides viz., captan 50 WP, copper oxychloride 50 WP, dodine 65 WP, mancozeb75 WP, propineb70 WP and zineb 80 WP were evaluated against rice sheath blight (Thanatephorus cucumeris). The in-vitro evaluation of these fungicides through poisoned food technique at five different concentrations viz., 50, 100, 200, 500 and 1000 µg ml-1 indicated that mancozeb proved the most effective exhibiting mean mycelial growth inhibition of per cent followed by captan and dodine with and per cent, respectively. Copper oxychloride proved least effective and resulted in only per cent mean inhibition of mycelial growth. Maximum mean inhibition of sclerotial germination was exhibited by mancozeb () followed by captan () while dodine and propineb caused only and per cent mean inhibition of sclerotial germination, respectively. Copper oxychloride proved least effective causing per cent mean inhibition of sclerotial germination only. |
