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

Mealybug and ants.

PHOTO 311. A typical example where the natural enemies of mealybug (Photo 310) are expelled by ants. Also note the apparently protective action of mealybug exercised by ants – compared to Photo 309.

PHOTO 312. Feeding activities of ants on secreted honeydew, while natural enemies are driven out at the same time. Although it is considered a myth that mealybug larvae are carried around by ants, this example looks rather suspicious.

A Guide to Grapevine Abnormalities in South Africa • 201