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Oral Presentation
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Student 10-Minute Presentation Competition

Plant-Insect Ecosystems

Student Competition

Student

Grad 10-min Competition: P-IE, IPM 2

Multi-state evaluation of the performance of non-neonicotinoid management programs for potato virus Y in seed potato

Monday, November 10, 2025
11:30 AM - 11:42 AM Pacific
Location: Oregon Convention Center, Portland Ballroom 255, OCC
Oral Presentation Student Competition
Potato virus Y (PVY) is a major aphid-transmitted disease impacting potato production in the United States. PVY causes dramatic reductions in potato yield and quality, including rejection of potato lots intended to be sold as seed material. At-plant neonicotinoid insecticides have emerged as effective treatments due to their ability to eliminate the establishment of potato-colonizing aphid species in the early season. In recent years, however, these insecticides have been subject to scrutiny due to their negative impacts on insect diversity, water quality, and pollinator health, in addition to the fact that in-plant concentrations tend to decline and they lose efficacy as the season progresses. To find alternatives for neonicotinoids, reduced risk and aphid behavior-modifying compounds were combined into insecticide management programs and field tested in Maine, New York, Washington, Michigan, and Wisconsin. Upon harvest, these seed pieces were sent for post-harvest evaluations at locations in both FL (ME seed) and Hawaii (WI, MI, NY, WA seed) to determine PVY incidence. The yield and PVY incidence data will be shared here.