Application Equipment for Potato Post-Harvest Disease Control
Carol MacNeil, Extension Vegetable Specialist
Cornell Vegetable Program

Late blight, caused by Phytophthora infestans (Mont.) de Bary, and pink rot, caused by Phytophthora erythroseptica Pethybr., are two devastating potato tuber diseases. These pathogens regularly cause storage losses in potato production systems. While these pathogens, especially P. infestans, spread rapidly in the field, there can also be substantial tuber-to-tuber spread during mechanical harvesting and tuber transfer procedures. With these diseases present in the field, storage losses well beyond what would be expected can occur based on the pathogen level in the field. Learn more about how to control diseases following potato harvest in this University of Maine Extension publication by Steven B. Johnson, Extension Crops Specialist.
Application Equipment for Potato Post-Harvest Disease Control

Upcoming Events
2026 Finger Lakes Produce Auction Winter Growers Meeting
January 8, 2026
Penn Yan, NY
At this vegetable grower-focused meeting, ag industry experts will discuss food safety, disease management in strawberries, the benefits of using cover crops, plus more. Two grower panel discussions will focus on pest management techniques and irrigation. DEC recertification credits offered in categories 10, 1a, 21, 22, 23, and 24.
2026 Ontario Produce Auction Winter Growers Meeting
January 14, 2026
Stanley, NY
At this grower-focused meeting, ag industry experts will discuss European Cherry Fruit Fly, greenhouse phytosanitary inspections, the benefits of using cover crops, plus more. Two grower panel discussions will focus on pest management techniques. DEC recertification credits offered in categories 10, 1a, 22, 23, and 24.