How to Manage Pests

Pests in Gardens and Landscapes

Pea leaf weevil—Sitona lineata

The adult pea leaf weevil is grayish brown and about 1/5 inch long.


Pea leaf weevils chew semicircular notches on margins of leaves. When weevil infestations are severe, young plants can be chewed off at the ground level.


The greatest injury to plants occurs during the seedling stage. Seedlings can be protected with protective cloth or other coverings. Once plants have grown past the six-leaf stage, treatment is not normally necessary as plants can grow away from threat of serious damage.

Pea leaf weevil adult
Pea leaf weevil adult

Margins of pea plants chewed
Margins of pea plants chewed

Statewide IPM Program, Agriculture and Natural Resources, University of California
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