Black Rot

English name for the vine disease black rot; see there.

Black rot (also known as black rot, Phyllosticta ampelicida, dry rot, Viala & Ravaz) is a fungal disease of grapevines that is widespread throughout the world. However, due to the similarity in name, it should not be confused with the grapevine diseases black foot disease, black spot disease or black wood disease. It was first described at the end of the 18th century by the French botanist André Michaux (1746-1802). It originated in North America, where in 1848 it brought viticulture in the US state of Ohio to an almost complete standstill, at least in the south.

After phylloxera and the fungal diseases powdery mildew and downy mildew, the disease was the last of the "four great plagues" to arrive in Europe, presumably with vine material, at the beginning of the 1880s. It occurs mainly in France, Italy, southern Switzerland and occasionally in German growing regions and is spreading more and more.

Cause

It was first identified in Europe in 1883 by the French oenologist Pierre Viala (1859-1936)...

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