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

Mealybug.

PHOTO 317. Typical of mealybug activities is the use of honeydew as growth medium for sooty mould fungi – as can be seen in this example, at the beginning of véraison.

PHOTO 318. This Chardonnay bunch, practically ready to be harvested, was totally ruined by mealybug, while adjacent leaves and shoot parts display characteristic abnormalities.

204 • A Guide to Grapevine Abnormalities in South Africa