Late blight, Early blight, Bacterial wilt, Ring rot, Virus disease, Scab, Potatosets chytrid fungus, Black shank disease, Nematode, Tar spot, etc.Bamboo fungus Soot bacteria, Slime mould,etc. Potato Late blight, Early blight, Bacterial wilt, Ring rot, Virus disease, Scab, Potatosets chytrid fungus, Black shank disease, Nematode, Tarspot, etc. The experience from the field visit under RSSP1 was that major pests and disease problems include: (1) Late blight (Phytophthora infestans), (2) Bacterial wilt Pseudomonas solanacearum, (3) Potato tuber moths and (4) aphids. Late blight (Phytopthora infestans) is a major disease which cause up to 100% yield loss when no control measures are applied. The experience from the field visit is that the major pest and disease problems of potatoes are (1) Late blight, (2) Bacterial wilt, (3) Potato tuber moths and (4) Aphids (serious during low rain season). Rust & Smut of Wheat, White rust of Crucifers, Late blight of Potato, Red rot of Sugarcane, Citrus Canker.UNIT-IVBryophytes:General characters, classification & economic impotance. Important diseases caused by fungi White rust of crucifers - Albugo candidaDowny mildew of onion - Peronospora destructor Late blight of potato - Phytophthora infestans Powdery mildew of wheat - Erysiphe graminis Ergot of rye - Claviceps purpureaBlack stem rust of wheat - Puccinia graminis triticiLoose smut of wheat - Ustilago nudaWilt of tomato - Fusarium oxysporum f.sp. Late blight fungal spores can be carried to other plants by many things, including wind, rain, machinery, workers, wildlife and infected seed potatoes.

White blight definition