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