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

Erinose.

PHOTO 326. As the galls get older, the white growths (as in Photo 325) are systematically subjected to browning. Also note the leaf edges which curl downwards, in this instance on Ramsey.

PHOTO 327. An example of severe erinose damage suffered by this Sauvignon blanc grapevine early in the growing season (before flowering).

210 • A Guide to Grapevine Abnormalities in South Africa