Excoriasis: nf Cryptogamic disease (fungus) of the vine which affects the base of the branches. These become white and cracked, fragile and brittle. They dry out and detach under the action of the wind. This disease of European origin identified in 1925 is par excellence the disease of vines under short pruning (goblet, cordon de Royat). The loss of the harvest can be estimated at around 15%. To fight against excoriosis, sulfur is used (double action against powdery mildew) or...
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