Source: University of Delaware

When battling downy mildew, a potentially devastating disease that strikes lima beans (Phaseolus lunatus), one of Delaware's most important vegetable crops, assembling a team of experts to attack the problem from all angles is a must. That's why a diverse group of plant scientists in the University of Delaware's College of Agriculture and Natural Resources has joined together to battle this important plant disease.

Tom Evans, professor of plant pathology in the Department of Plant and Soil Sciences, and many graduate students have studied downy mildew over the past 15 years.

Evans said lima beans are vital to agriculture in Delaware and are "the cornerstone of the state's processing vegetable industry." Approximately 6,000 hectares of baby lima beans are grown annually, with a farm value of more than $6 million. If lima beans cannot be grown profitably in the state, then many other processing vegetables would not be grown due to the economics of processing. 

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