Tuesday, 19 November 2002
D0434

This presentation is part of : Display Presentations, Section F. Crop Protection Entomology

Potato leafhopper economic injury levels on snap beans

Thomas P. Kuhar1, John Speese1, and Michael P. Hoffmann2. (1) Virginia Tech, Entomology, Eastern Shore AREC, 33446 Research Drive, Painter, VA, (2) Cornell University, Department of Entomology, Insectary Building, Ithaca, NY

Potato leafhopper (PLH), Empoasca fabae, is an important mid-summer pest of many crops in the eastern and central U.S. In 2001 and 2002, we conducted field cage studies on the yield impact of varing densities of PLH on seedling snap beans. Results showed that fewer than 1 PLH nymph per leaf resulted in economic yield loss.

Species 1: Homoptera Cicadellidae Empoasca fabae (potato leafhopper)
Keywords: threshold, Phaseolus vulgaris

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