The wine question of the day
Which dreaded vine disease is caused by the fungus "Phomopsis viticola"?
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Correct answer is: Black spot disease
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Black spot disease
This vine disease (French: excoriose) has been known for a long time and occurs in many wine-growing regions worldwide. It was the most dangerous fungal disease in Europe before powdery mildew. It must not be confused with blackwood disease, which is transmitted by cicadas. At the beginning of the 20th century, black spot disease was probably contained (as a side effect) by intensive control of downy mildew with Bordeaux broth. The "black burner" mentioned in the middle of the 19th century is probably the same disease, based on the symptoms. Anthracnose, which is described as identical in...
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