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ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Research Project #433988

Research Project: Managing the Most Significant Biotic Challenges for Organic Onion Production Across the Great Lakes Region

Location: Vegetable Crops Research

Project Number: 5090-21000-069-04-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Jan 1, 2018
End Date: Aug 31, 2020

Objective:
1. Develop and release new open-pollinated onion cultivars with multiple disease and pest resistances for organic production. 2. Evaluate and implement sustainable and eco-friendly integrated pest management (IPM) tactics for thrips and foliar diseases. 3. Develop and deliver workshops and web-based resources for stakeholders on practical, economical and environmentally sound pest management programs for organic onion producers.

Approach:
Cross among sources of resistances to thrips, pink root, and fusarium basal rot and use marker-aided selection to combine resistances; Select for early maturing using replicated plots in organic production fields, monitor thrips numbers and damage on selections; Release to stakeholders early maturing populations of yellow onions with multiple pest resistances; Develop and evaluate new management approaches for thrips and foliar diseases for onions with unique cuticular-wax profiles; Implement this management program in growers’ fields and compare levels of control and marketable yields with current approaches; Present results at national and regional stakeholder meetings on new pest and disease management approaches. Develop and launch web-based resources for researchers, extension educators, growers, processors, and consumers of organically produced onion.