Outcomes of our research will help the potato industry develop a sustainable management plan for PVY that eliminates the tuber necrotic strains, improves crop characteristics, and increases profitability.
The expected outcomes and deliverables of our proposed research will include:
1. Improved diagnostic tests capable of differentiating all the PVY strains affecting US potatoes.
2. Aids for seed inspectors and growers to help recognize foliar and tuber symptoms caused by the new PVY strains.
3. Information back to each participating seed program on the PVY strains collected from their state.
4. Improvements to post harvest tests, with economic analyses of current and new methods.
5. The susceptibility of U.S. varieties to potato tuber necrotic ringspot disease caused by necrotic PVY strains.
6. Regional trials to evaluate susceptibility and symptoms in varieties and breeding lines to PVY strains in the US.
7. Minituber production methods to allow varieties to reach markets sooner and lower PVY infection risk in the field.
8. Models that relate the levels of PVY in seed lots to the levels of PVY incidence in the field and harvested tubers.
9. Information about aphid transmission of the PVY strains to predict the risk of local and regional spread.
10. Information on the effectiveness of new antifeedant compounds in preventing aphid inoculation of PVY into potato.