Infection usually occurs at harvest as tubers come into contact with spores in the soil. Spores are released into films of soil water when soil temperatres exceed 18C.
Pythium in potato tubers
Potato skin looks bruised, tubers become soft and the skin moist. After infection, skin ruptures and the tuber exudes liquid with slight pressure. A clean line can be drawn between healthy and diseased areas of infected tubers.
Spray with a combination contact/systemic product in early summer. Delay harvesting until tuber skins are mature. Avoid mechanical injury and increase ventilation if rot occurs in storage area.
Orondis Gold Potato helps secure early crop establishment and protect tubers from pink rot to maximize marketable yields, even after potatoes have gone into storage.
