Pests of Onion Grown for Seed

Shikha Singh, Cody Copp and Scott B. Lukas
Latest revision: 
March 2023

In all cases, follow the instructions on the pesticide label. The PNW Insect Management Handbook has no legal status, whereas the pesticide label is a legal document. Read the product label before making any pesticide applications.

Note: Products are listed in alphabetical order and not in order of preference or superiority of pest control.

Pesticides registered for pest control on a given vegetable crop can also be used for that vegetable’s seed crop, unless prohibited. For pesticide recommendations in addition to those listed below, see the appropriate vegetable section in this handbook.