Identification of Downy mildew disease: It is a fungal disease, and its symptoms can be easily seen in the morning when there is dew on the leaves. Light yellow spots develop on the surface of the leaves and seed stalks, and as the spots enlarge, a greyish-purple fungus develops on the surface. Infected plants may be stunted, malformed and pale green in colour, plants usually do not die, but the quality of tubers is poor.
Control: For good tuber development and control of downy mildew spray Godiwa Super (Azoxystrobin 18.2% Difenoconazole 11.4% SC) @ 200 ml or WOKOVIT (Sulphur 80 % WDG) @ 125 gm in 150 to 200 litre of water.
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