Weeds, Insects & Diseases

Wireworms [Ctenicera aeripennis destructor ]


Insect Biology

Adult click beetles overwinter in the soil and emerge in the early spring, around late April to early May. Each female lays between 200 and 400 eggs between late May and early June, depositing those eggs on the soil surface down to a depth of 15 cm, ...


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Description

Larvae are slender, with hard, smooth, jointed bodies. They are usually reddish-brown in colour, but can be yellow or white, as well. There are three pairs of legs behind the head, and the tail segment is notched.


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Management

Syngenta conducted surveys in 2010 and 2016 to detect wireworm and click beetle presence in the prairies. The map below displays where wireworms were found in 2010 (blue pins) and click beetles were found in 2016 (preliminary results represented by y...


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Recommended solution

  • Cruiser Vibrance Quattro logo

    Cruiser® Vibrance® Quattro is a ready-to-use, water-based seed treatment formulation for use in commercial seed treatment facilities or on-farm, for the control of certain insect pests and seed- and soil-borne diseases in cereal crops.

Insect Biology

Adult click beetles overwinter in the soil and emerge in the early spring, around late April to early May. Each female lays between 200 and 400 eggs between late May and early June, depositing those eggs on the soil surface down to a depth of 15 cm, or nearly six inches.

The larvae hatch within three to seven weeks and spend the next three to five years feeding on roots and germinating seeds and moving up and down in the soil profile as conditions dictate.

When they’re ready, larvae go through a short pupation, about a month long, and emerge as adult click beetles in the soil. They overwinter there and emerge the following spring to lay eggs and begin the cycle again.

Because of their long and somewhat variable life cycle, it’s important to note that a field infested with wireworms is likely to contain populations at all growth stages, at the same time.

Larvae Description

Larvae are slender, with hard, smooth, jointed bodies. They are usually reddish-brown in colour, but can be yellow or white, as well. There are three pairs of legs behind the head, and the tail segment is notched.

  • Prairie Grain Wireworm

Pupae Description

Pupae are white and contained within earthen cells in the soil.

Adult Description

Adult wireworms, or click beetles, are hard-shelled, black-brown in colour and cause no crop damage at this stage in their life cycle. They make a distinctive clicking sound when they fl ip from their backs to their feet. Size. Full-grown larvae range from ½ an inch to 1½ inches in length and adult click beetles range from ¼ to ½ an inch long.

Management

Syngenta conducted surveys in 2010 and 2016 to detect wireworm and click beetle presence in the prairies. The map below displays where wireworms were found in 2010 (blue pins) and click beetles were found in 2016 (preliminary results represented by yellow pins). Pins only indicate areas that were sampled and wireworms or click beetles were found; lack of a pin does not mean that there were no wireworms or click beetles present.
There are a number of cultural and chemical wireworm control options available to growers, and all should be included as part of an integrated crop management plan. See the wireworm blog for more details.

Recommended solution

  • Cruiser Vibrance Quattro logo

    Cruiser® Vibrance® Quattro is a ready-to-use, water-based seed treatment formulation for use in commercial seed treatment facilities or on-farm, for the control of certain insect pests and seed- and soil-borne diseases in cereal crops.