Use of field resistant varieties viz., Muktakeshi and Jankhri, early planting to avoid heavy monsoon rains, use of healthy planting materials, removal of self-grown colocasia plants, spray with fungicides viz., Mancozeb (0.2%) or metalaxyl+ mancozeb @ 2 g/l of water and treating the seed tubers with biocontrol agents viz., Trichoderma viride