Pea: Pea leaf weevils
Photo by: K. Grey
Biology
The pea leaf weevil is a small brownish-gray beetle about 1⁄5″ long. Adults are marked with lighter longitudinal lines on the back. They feed on the leaves, cutting out semicircular pieces from leaf margins. Damaged leaves appear ragged. Severe infestations may result in complete defoliation, particularly of young plants. The curved white larvae have dark heads and are found in the soil. Pea leaf weevils also feed on vetch, clover, and alfalfa.
Management Options
See "Using Integrated Pest Management (IPM) in the Landscape" for successful problem management techniques.
Non-chemical Management
Select non-chemical management options as your first choice!
- Do not plant peas near clover, vetch, or alfalfa patches.
- Hand-pick any adults found on young plants. Older plants are seldom seriously damaged.
- Provide proper culture to maintain vigorously growing plants. Healthy plants can usually outgrow damage.
Chemical Management
IMPORTANT: Always read and follow label directions when working with pesticides.
For more information on using pesticides visit :
- Do not apply within 3 days of harvest.
Approved Pesticides
If you choose to use a pesticide, some examples of products that are legal in Washington are listed below. Some products are labeled for just INDOOR or just OUTDOOR use, or may allow both uses. Be sure to choose a product appropriate for your situation. Always read and follow all label directions.
WSU Extension programs and employment are available to all without discrimination.
Evidence of noncompliance may be reported through your local Extension office.