Anthracnosis: treatment and control

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Anthracnose is characterized by the appearance of black or brown spots on the leaves.

It affects a lot of trees but generally does not present a risk. major for them.

Anthracnose is a fungus that mainly affects fruit trees such as the cherry tree the walnut the vine the raspberry tree the blackcurrant the oak or the gooseberry , some shrubs such as the hydrangea but also vegetables such as beans s, the peas , the cucumber or the tomatoes .

It attacks the foliage but does not directly endanger the life of the plant or tree, only the quality of the harvest.

Treatment of anthracnose

Preventively:

  • Spray a treatment based on Bordeaux mixture in late winter or early spring.
  • Always avoid treatment during periods of frost as the product will lose all or part of its effectiveness.

Curatively:

  • When the disease first appears, remove or collect affected leaves as you go along and burn them to prevent contagion.
  • Once bare, you can treat the tree or plant with a solution of Bordeaux mixture .

During the winter, prune infected trees so that they will regain vigour when the weather returns, burn the branches and spray with Bordeaux mixture.

Take care to thoroughly disinfect pruning tools before and after, so as not to contaminate other plants.