Fungicides for potato blight in India. The potato is one of the most important crops of India. It is grown in cool, temperate regions of elevations of around 2000 meters or more in tropical areas. It also requires cool nights with adequate moisture and does not grow well in low altitude, warm and tropical environments. Late blight of potatoes is a major disease affecting the crop in India. To prevent blight, horticare specialists advise planting your potatoes in a breezy spot with plenty of space between the plants and treating it with fungicide before blight appears. Maintaining a fungicides spray schedule will prove helpful in managing the blight of potatoes and increasing potato yield.