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Phytoplasmas in Potatoes

February 2014

By Ian MacRae, Ph.D.
Extension Entomologist
University of Minnesota
Phone: 218 281-8611

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Summary: This presentation will help producers, agricultural professionals and others in the North Central region and other potato producing areas recognize and manage the phytoplasma disease, Purple Top in potatoes. In this presentation, the biology of the phytoplasma causing Purple Top and its insect vector, the aster leafhopper, are discussed as well as potential management of the disease in potato production. The disease, its symptoms and impacts are reviewed and the epidemiology resulting from the life history, distribution and movement of the vector/pathogen complex is presented.

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