​​Phytoplasmas in Potatoes

February 2014 | 15 min., 20 sec.
by Ian MacRae
University of Minnesota


​This presentation will help producers, agricultural professionals, and others in the North Central region of the United States and other potato-producing areas recognize and manage the phytoplasma disease purple top in potatoes. This presentation will discuss the biology of the phytoplasma that causes purple top and its insect vector, the aster leafhopper, as well as potential management of the disease in potato production. The disease, its symptoms, and its impacts are reviewed and the epidemiology resulting from the life history, distribution, and movement of the vector–pathogen complex is presented.

About the Presenter

Ian MacRaeIan MacRae received his PhD in entomology from Oregon State University in 1994. After postdoctoral research at Colorado State University, he joined the Department of Entomology at the University of Minnesota, where for the past 16 years he has been an Extension entomologist at the Northwest Research & Outreach Center in Crookston, Minnesota. He has conducted numerous research and Extension projects and published on the spatiotemporal distributions and management of insect pests in agricultural systems, including pathogen vectors in small grains and potatoes. Dr. MacRae has also been involved in several research efforts on the management of aster yellows phytoplasma in canola, wheat, and potatoes.​

Contact Information:
Email: imacrae@crk.umn.edu


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