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ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Research Project #438714

Research Project: Managing Stakeholder-Prioritized Pests and Diseases for Sustainable and Economic Onion Production

Location: Vegetable Crops Research

Project Number: 5090-21000-069-057-A
Project Type: Cooperative Agreement

Start Date: Jan 1, 2021
End Date: Oct 30, 2021

Objective:
Develop and release new early-maturing, thrips-resistant onion cultivars for growers.

Approach:
Onion breeding populations have been developed with semi-glossy foliage (due to lower amounts or unique profiles of the epicuticular waxes on leaves) associated with resistance to onion thrips, the most important insect pest of onion in the USA. These populations will be grown in replicated plots in the greenhouse and field under conventional production conditions. Thrips numbers and damage will be assessed, and bulb yields and sizes measured. Differences in thrips numbers will be used to estimate reduction in insecticide sprays to achieve adequate thrips control. The best performing onion populations will be released to growers and seed companies.