Our objectives meet current needs identified by the potato industry.
To ensure the research continues to address relevant issues—growers, industry representatives, seed certification officials, and federal regulatory officials meet annually with the principal investigators to discuss results and explore possible changes in research direction and scope.
Our aim is to diminish virus in seed stocks and halt virus spread in the crop through the refinement of PVY management strategies used by growers and seed certification agencies.
A. Assist seed certification agencies with improved practices for detecting, monitoring and eliminating PVY from seed stocks.
B. Enhance methods for assessing PVY resistance and gauging, PVY strain-specific and potato variety-specific, symptoms.
C. Deliver cost effective, on-farm virus control strategies to potato growers.
Expected outcomes of our research on PVY include:
1. Improved diagnostic tests to differentiate the PVY strains affecting USA-grown potatoes.
2. Materials for seed inspectors and growers to aid recognition of foliar and tuber symptoms of the new PVY strains.
3. Information for each state on the PVY strains collected from participating seed programs.
4. Alternatives to current post harvest test methods with comprehensive economic analyses comparing current methods to those developed through our research.
5. Knowledge of USA-grown potato varieties' susceptibility to potato tuber necrotic ringspot disease caused by the invasive necrotic and recombinant strains of PVY.
6. Establishment of regional tests to evaluate PVY strain susceptibility and symptom expression in varieties and advanced breeding lines.
7. Improved minituber production methods to hasten varieties to market and decrease PVY infection of minituber crops planted in the field.
8. Forecast and economic models relating the levels of PVY in seed lots to the levels of PVY in the crop and in harvested tubers.
9. Information on aphid transmissability of the invasive PVY strains to help predict spread within crops and across geographic regions.
10. New information on aphid antifeedant compounds that could prevent aphid inoculation of PVY into potato.