Pacific Northwest Insect Management Handbook

Chard, Swiss-Wireworm

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Image related to Chard, Swiss-Wireworm
Pacific coast wireworm
Limonius canus LeConte
Immature
© Ken Gray Insect Image Collection
Image related to Chard, Swiss-Wireworm
Pacific coast wireworm
Limonius canus LeConte
Adult
© Ken Gray Insect Image Collection

Limonius spp.

Pest description, crop damage and life history

See:

Common Pests of Vegetable Crops

Management-biological, cultural, tactical

See:

Potato, Irish-Wireworm

Management-chemical control: HOME USE

  • azadirachtin (as a mix with pyrethrins)-Some formulations are OMRI-listed for organic use.
  • bifenthrin-Not registered for home use on celery in WA.
  • cyfluthrin
  • zeta-cypermethrin

Management-chemical control: COMMERCIAL USE

  • chloropicrin (TeloneII)-Preplant.

Kaur, N. (Ed.). 2024 Pacific Northwest Insect Management Handbook.
© Oregon State University.

Use pesticides safely!

  • Wear protective clothing and safety devices as recommended on the label. Bathe or shower after each use.
  • Read the pesticide label—even if you’ve used the pesticide before. Follow closely the instructions on the label (and any other directions you have).
  • Be cautious when you apply pesticides. Know your legal responsibility as a pesticide applicator. You may be liable for injury or damage resulting from pesticide use.

Trade-name products and services are mentioned as illustrations only. This does not mean that the participating Extension Services endorse these products and services or that they intend to discriminate against products and services not mentioned.