Control of leaf blight of taro (Colocasia esculenta (L.) Schott) caused by Phytophthora colocasiae Racib. through fungicides and selection of variety.
Spraying with Ridomil MZ 72 WP [metalaxyl] at 3 kg/ha at intervals of 15 d was highly effective in controlling the disease under field conditions, and gave max. net financial return. This fungicide was equally effective against P. colocasiae in vitro. Of 11 cultivars screened under natural epiphytotics, Burdwan local was the best for commercial cultivation in this agroclimatic zone.