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Funded Project
Funding Program: Regional IPM Competitive Grants - Northeastern
Project Title: Reducing Potato Leafhopper (PLH) Impacts on Alfalfa through PLH-resistant Cultivars Intercropped with Perennial Forage Grass
Project Directors (PDs):
Don Viands [1]
J. Keith Waldron [2]
Marvin Hall [3]
John Losey [4]
David H. Johnson [5]
John Hanchar [6]
Julie Hansen [7]
Lead State: NY

Lead Organization: Cornell University
Cooperating State(s): Pennsylvania
Research Funding: $79,470
Start Date: Jun-15-2006

End Date: Jun-14-2008
Pests Involved: potato leafhoppers
Site/Commodity: alfalfa, field crops, forage, grasses
Area of Emphasis: resistance, resistant, intercropping
Summary: Potato leafhopper is the most damaging alfalfa insect pest in the Northeast. Forage grasses in mixture with alfalfa can cause PLH to emigrate and are environmentally beneficial, but may reduce forage quality. Producing high quality forage is a key to profitability in livestock production systems. Some recent alfalfa cultivars have glandular hairs and PLH-resistance, yet are not immune to damage from PLH. Potato leafhopper-resistant alfalfa cultivars intercropped with perennial forage grass could be an IPM strategy that would have environmental, agronomic, and economic benefits to forage producers.

Objectives: Compare PLH populations, and forage yield and quality in the establishment year and first production year of a conventional, PLH-susceptible alfalfa cultivar and a PLH-resistant alfalfa cultivar, each alone and intercropped with perennial forage grass species timothy, orchardgrass, and tall fescue. Complete partial budget economic analysis of forage production using PLH-resistant alfalfa in alfalfa-grass mixtures. Share results of this study in extension outreach opportunities throughout New York, Pennsylvania, and the NE region.

Proposal

Progress Report

USDA CRIS data

Final Report

Final Report - Appendix 1

Final Report - Appendix 2

Final Report - Appendix 3

Final Report - Appendix 4

Final Report - Appendix 5



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