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

Sulphur burn.

PHOTO 439. In berries, sulphur burn is associated with the development of smooth, dark brown to black discolourations (within which cracks occur) – clearly illustrated by this example.

PHOTO 440. A closer look at the cracks associated with dark brown discolourations (as in Photo 439) as a result of sulphur burn. Not to be confused with sunburn or heat damage.

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