How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle—Wireworms

Common wireworm species require 3 to 4 years to complete their life cycle. Most of the time is spent in the larval stage, but all stages may be present at once during the growing season. The larvae move up and down in the soil in response to temperature and moisture. Mature larvae form a pupation cell of soil particles; they may pupate right away or remain in the cell over the winter, pupating in the spring. Adults that develop in the fall may also remain in pupation cells over the winter. In spring and summer, adults burrow to the surface. Both sexes are capable of flying to reach mates and egg-laying sites. Females burrow back into the soil to lay eggs.

Click beetle (adult wireworm)
Click beetle (adult wireworm)

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