Framboisiers

Raspberry Spur Blight

Didymella applanata

Champignon

5 mins to read

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En Bref

  • Blue or violet spots & spore blisters on the shoots.
  • Bark bursts open.
  • Early leaf drop.

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Framboisiers

Symptômes

Blue to violet spots appear on the shoots and the bark bursts open. Subsequently, the spore cushions form blisters on the shoots. The plant drops its leaves early in the year. In spring the affected shoots do not sprout.

Recommendations

Contrôle Biologique

Remove infected shoots. After an infection, use a plant fortifier, so the plants are able to fight the fungi. You can choose more resilient varieties, such as Glen Moy, Glen Rosa, Julia, Malling Admiral or Leo.

Contrôle Chimique

Fungicides based on Lime Sulfur or Captan/Fenhexamid mixtures can be used.

Ce qui l'a provoqué(e)

The pathogen enters the plant with humid spring weather and hibernates in the affected shoots.

Mesures préventives

  • Balanced nutrition supply is important.
  • Injuries should be avoided.
  • Leave sufficient distance between plants.
  • Apply plant fortifier.

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