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

Mealybug.

PHOTO 313. With mealybug there is no contraception and the masses of practically invisible larvae – especially when occurrence is already widespread – have the ability to migrate very quickly to take possession of shoots, leaves, bunches and even roots.

PHOTO 314. A typical example of the grotesque format in which mealybug may occur in early spring on the basal parts of green shoots. Note: (i) difference in body size of females; (ii) massive release of larvae from egg-sacs and (iii) the appearance of sticky, honeydew drops in the 13:00 and 18:30 positions.

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