A Guide to Grapevine Abnormalities in South Africa - P.G. GOUSSARD

Fungicide overdosing (540); bunch from trunk (541).

PHOTO 540. Harmful interventions on this Bukettraube leaf, as a result of overdosing (excessively high concentration) with a specific fungicide applied to prevent oidium.

PHOTO 541. In exceptional cases bunches grow from trunks and/or cordon arms. Despite the absence of shoots and leaves, or even parts thereof, colouration occurred in this Cabernet Sauvignon bunch and it even underwent some degree of ripening.

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