A Guide to Grapevine Abnormalities in South Africa - P.G. GOUSSARD
Heat damage.
PHOTO 399. In Muscat d’Alexandrie older leaves are often subjected naturally to the development of uneven yellow to brown heat spots. Not to be confused with characteristic heat damage/spots.
PHOTO 400. A typical example of characteristic indentations – with the tissue eventually browning from the inside – on berry surfaces, as a result of heat damage.
256 • A Guide to Grapevine Abnormalities in South Africa
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