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 NYS Dry Bean Meeting and Cutting Event
March 20, 2026
Geneva, NY
The Cutting Event will be held in the morning, followed by lunch, and the NYS Dry Bean Meeting in the afternoon.
DEC recertification credits available for the NYS Dry Bean Meeting portion of the day: 2.0 in categories 1a, 10, 21, and 23.
Harmonized GAP Plus+ Plan Writing Session
March 20, 2026
Newark, NY
Join us for this specialized workshop to cover requirements for this specific audit. Commercial fruit and vegetable growers are increasingly being asked to have the Harmonized GAP Plus+ audit to satisfy some large buyer's requirements.
2026 Rochester Urban Agriculture Conference
March 21, 2026
Rochester, NY
Join us for our annual Rochester Urban Agriculture Conference, a day of learning and connections featuring interactive workshops, community knowledge sharing, Fruition's Gift of Seed Experience, horticulture tables and displays, and more!