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

Mealybug.

PHOTO 319. Adult mealybug females, young larvae and egg-sacs are revealed by looking closely at the example of a bunch in Photo 318. Obviously fructiferous birds may be singled out as an ideal and additional spreading mechanism of the respective mealybug stages.

PHOTO 320. Discolouration/drying out of leaves as a result of mealybug sucking out plant sap. This phenomenon is not to be confused with leafroll, especially in red wine cultivars. Also note the shiny appearance of organs – especially the leaf on the right.

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