A vine leaf suffering from Anthracnose

Anthracnose is a fungal disease of European origin that attacks vines. It is also known as black spot or bird’s eye rot.

About Anthracnose

This disease is found all around the world, but it is especially prevalent in humid areas such as the eastern United States. It was the most problematic grape fungal disease in Europe before to the introduction of Downy Mildew and Powdery Mildew. However, with the introduction of the Bordeaux mixture in 1885, it has been controlled.

The disease is caused by the fungus Elsinoe ampelina.

How to recognized vines suffering from Anthracnose

Small black lesions appear on the leaves, and this area can die and drop out, giving the leaves the appearance of being peppered. Small dark blotches appear on the new branches, flower cluster stalks, and berries.

Consequences of Anthracnose

Anthracnose can reduce both the yield and the quality of the fruit. However, fungicides administered early in the growing season can control the illness.

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