Wireworms

Elateridae larvae

Wireworms is a soil-inhabiting beetle larval group associated with seeds, roots, tubers, seedlings, and fields converted from sod, pasture, or weedy ground. Larvae bore into seed, roots, tubers, and lower stems, causing stand gaps, wilt, tunneling, and secondary rot. Confirm whether it is truly damaging.

Identification

Wireworms are slender, hard-bodied, yellow to brown click-beetle larvae with three pairs of short legs. They are more rigid and cylindrical than soft white grubs. Use preplant bait stations made from germinating grain where locally validated, or sift soil around damaged seed and roots. Record bait captures and field history. Combine specimen and fresh evidence.

Symptoms / Signs

Larvae bore into seed, roots, tubers, and lower stems, causing stand gaps, wilt, tunneling, and secondary rot. Rule out abiotic and disease causes. Old signs may persist.

Life Cycle / Process

Click-beetle eggs hatch into long-lived wireworms that may remain in soil for multiple years before pupating and emerging as adults.

Prevention

Prevent recurring conditions linked to seeds, roots, tubers, seedlings, and fields converted from sod, pasture, or weedy ground. Primary operational setting: seeds, roots, tubers, seedlings, and fields converted from sod, pasture, or weedy ground.

Management / Control

Avoid planting susceptible crops immediately after sod or pasture where risk is high, destroy weeds early, improve drainage, rotate crops where useful, and use labeled seed or soil treatments only after preplant evidence supports them. Require active evidence before intervention.

Procedure Steps

1. Map the fresh edge of root, seedling, or turf injury. 2. Close the Wireworms incident after fresh injury or contamination stops.

Safety Notes

Use task-appropriate gloves and eye protection when handling seeds, roots, tubers, seedlings, and fields converted from sod, pasture, or weedy ground. Verify the Wireworms label and site restrictions.