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    Root rot [Pseudocercosporella herpotrichoides]

    Infections in spring cause a reduction in the number of grains/ears and the grain weight. In case of severe infection, the grain does not have a growth stage.

    overview

    Root rot - image 1

    Root rot - image 1

    Pest Profile

    • Symptoms & Diagnosis

      Occurence

      Prefers cool humid conditions. Infections start from spores released form infected plant material from previous crops.

      Pattern of damage

      Towards the end of fall, longitudinal, gray-brown to yellow-brown spots appear on the base of the stem. Then, during the stem elongation phase, the typical oval, frequently dark-outlined spots (eye-spots) form on the stem (Picture 1). The base of the stem rots and in case of severe, early infection, the stems can bend over at the affected zone (lodging).

      Treatment

      Prevention

      Do not grow continuous wheat.

      Combat

      Use fungicide treatments.