Pink Eye: The Periderm Disorder Syndrome
By Edward C. Lulai, Ph.D.
Northern Crop Science Laboratory
Fargo, North Dakota
Watch Presentation (18 min 32 sec)
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This presentation will help consultants, county agents, growers, researchers and other practitioners in potato growing areas understand the complex nature of the costly problem formerly referred to as “pink eye”, now called “periderm disorder syndrome” (PDS). This disorder has no cure. An understanding of the physiological processes that give rise to the problematic symptoms is essential in guiding practitioners as they consider approaches to minimize costly losses from associated disease and defect development. Specifically, the presentation will answer the questions: what is the “periderm disorder syndrome” (aka “pink eye”) and what are its symptoms? Is it caused by pathogens or is it a physiological disorder? How does it arise and what do we know about possible ways to control or minimize it? By the end of this presentation, practitioners will have an understanding of the nature of the syndrome and its’ complexities, and will be able to use this information to help make decisions regarding emerging recommendations for storage, sale and processing of afflicted potatoes. This background information is crucial because, at present, there are no means of preventing or reversing PE/PDS development.