Northwest berry Foundation

Management Detail

Verticillium wilt

in Strawberries

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Latin name: Verticillium dahliae and V. albo-atrum

Description:

Individual plants wilt, sometimes in patches in the field. Plants are most severely affected in their first year. Older leaves wilt and tend to curl up along the midvein. Inner (younger) leaves are small, bluish and dull. Plants often are stunted, dry, and flattened with small yellowish leaves, especially as fruit ripens. Brownish streaks occur in vascular tissue of crown roots or at the base of the petiole.

Links:

Scouting:

  • Watch for areas of weak, stunted growth. Leaves may be wilted. Some plants may be dead.
  • Look for characteristic bluish tinge on leaves.
  • Dig up affected plants to examine the crown and roots to determine cause of problem.
  • Slice open the crown to look for brown streaks in the vascular tissue.
  • Not as common as other root diseases. Send to lab to confirm diagnosis.

 
Cultural Controls:

  • Don't plant on sites that have a history of Verticillium and/or Verticillium susceptible crops in the last five years.
  • Remove infected plants as well as those on either side of them.

 

For information about chemical controls, check with our Pesticide Guide.

images


photo by T. Peerbolt


photo by T. Peerbolt

 


Strawberry field damaged by verticillium wilt - photo by T. Peerbolt


Photo by T. Peerbolt

 

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Northwest Berry Foundation

Northwest Berry Foundation

© 2016

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Portland, OR 97203

Office: 503-285-0908

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