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

Sunburn.

PHOTO 407. Although sunburn may affect/damage leaves to a lesser extent, they remain susceptible and characteristically pale brown, intravenous spots are associated with sunburn.

PHOTO 408. A further example of sunburn damage to leaves. In this specific case wind was a further factor contributing to the emergence of pale brown spots.

260 • A Guide to Grapevine Abnormalities in South Africa