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US: Nematology expert discusses management practices for corky ringspot in potatoes

In a video aimed at helping potato growers, the Plant Management Network has released a presentation by Michigan State University professor of nematology George W. Bird on management practices for corky ringspot. The disease is caused by the tobacco rattle virus and vectored by stubby-root nematodes. The primary symptoms are characteristic concentric rings on tuber skin and internal tissues. Bird’s presentation is designed to assist growers in understanding and managing corky ring spot. It contains information about symptoms of the disease and how to sample for the stubby root nematode. It also covers the management strategies of containment, exclusion and nematode population control. Special attention is given to chemical and biological control options and the topic of soil health. Watch video