Bacteria and fungal spores are widespread. However these diseases do not become serious if tubers are healthy, mechanical damage is minimized, and good sanitation is used. A total disease management program to maintain good tuber resistance. Good storage practices prevent spread of disease. Click to expand Wilting occurs, usually late in the season.
Aerial tubers form.
Brown spots develop on potato skins, the flesh becomes soft and mushy and turns pink when cut. A clear line can be drawn between healthy and diseased areas of infected tubers. A soil borne disease that develops in very wet areas subject to poor drainage, heavy precipitation or irrigation. Plant seed tubers in soils with good drainage. Avoid excessive irrigation late in growing season.