Weeds, Insects & Diseases

Verticillium wilt [Verticillium albo-atrum, Verticillium dahliae]


Disease Biology

Mainly soil-borne, but also tuber-borne. The pathogenic fungi build up in the soil with repeated potato production, but are also harbored by other crop species. Wilt fungi can be spread by infected seed pieces, on farm machinery and in irrigation wat...


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Damage Description

Early dying of leaves and stems on plants in patches in fields. Often only one stem of a plant or leaves on one side of a stem wilt during hot or dry weather. Leaf tissue between veins turns yellow. In diseased plants a brownish discoloration occurs ...


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Management

Rotate potato with non-susceptible cereal crops. Plant varieties that are not highly susceptible to wilt. Maintain high fertility and adequate irrigation, which tend to reduce the impact of wilt on the crop. Plant certified seed tubers.


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Recommended solution

  • Aprovia logo

    Aprovia demonstrates excellent activity on many foliar diseases in several crops, including potatoes, blueberries and pome fruit.

Description

Mainly soil-borne, but also tuber-borne. The pathogenic fungi build up in the soil with repeated potato production, but are also harbored by other crop species. Wilt fungi can be spread by infected seed pieces, on farm machinery and in irrigation water. The fungi penetrate plants through root hairs, then concentrate in the vascular tissue and restrict the uptake of water. Susceptible plant species include Potato and many other broad-leaved crops and weeds.

  • Verticillium Wilt
  • Verticillium Wilt

Damage Description

Early dying of leaves and stems on plants in patches in fields. Often only one stem of a plant or leaves on one side of a stem wilt during hot or dry weather. Leaf tissue between veins turns yellow. In diseased plants a brownish discoloration occurs in the vascular tissue of the stem or tubers near the stem end.

If high levels of the wilt pathogens are allowed to develop in fields, severe yield losses may occur.

    Management

    Rotate potato with non-susceptible cereal crops. Plant varieties that are not highly susceptible to wilt. Maintain high fertility and adequate irrigation, which tend to reduce the impact of wilt on the crop. Plant certified seed tubers./p>

    Recommended solution

    • Aprovia logo

      Aprovia demonstrates excellent activity on many foliar diseases in several crops, including potatoes, blueberries and pome fruit.