Onion pest identification and management
In English | En Español
- Remove weeds and plant residue.
- Till garden before planting.
- Place cardboard collars or aluminum foil around stems when planting transplants.
- Avoid using animal manure or green manure in spring.
- When possible, delay planting onions (until after June 1).
- Remove and destroy host plants in fall.
- Use row covers in spring (don't plant onions in the same area in consecutive years).
- Yellow storage onions are more resistant than Spanish onions.
- Use drip irrigation.
- Do not leave culls near field.
- After harvest, remove and destroy or bury any infected leaves.
- Do no plant onions, leeks, or shallots in the same field for 3-4 years.
Fusarium basal rot
- Plant varieties with tolerance or resistance to disease.
- Plant in well drained soil or use raised beds to improve drainage.
- Do not plant onions, shallots, garlic, or chives in the same field for 4 years.
Funding provided through a partnership agreement between the Minnesota Fruit & Vegetable Growers Association and the USDA - Risk Management Agency. USDA is an equal opportunity provider and employer.
The University of Minnesota is an equal opportunity educator and employer. This publication/material is available in alternative formats upon request. Direct requests to [name, department, e-mail address, phone number]. Printed on recycled and recyclable paper with at least 10 percent postconsumer material.