How to Manage Pests

Pests in Gardens and Landscapes

Pest identification and confirmation—Leafminers

On vegetables, the most common leafminers are the larvae of small flies belonging to the genus Liriomyza, including the vegetable leafminer, serpentine leafminer, and pea leafminer. Vegetable leafminers may be black except for a prominent yellow triangle between the bases of the wings. The head behind the eyes may be mostly black. Other species may have the thorax covered with overlapping bristles that give fresh specimens a silvery gray color. The area behind the eyes may be yellow. The yellowish maggots and brown, seedlike pupae of the two species are too similar to distinguish.

An adult vegetable leafminer
An adult vegetable leafminer

A less common leafminer species
A less common leafminer species


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