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

Phylloxera.

PHOTO 280. A similar situation as in Photo 279, where the occurrence of both nodositites and tuberositites can be observed. Even valiant efforts are unlikely to save this root system from the onslaught of phylloxera in the long run.

PHOTO 281. Phylloxera galls on the undersides of leaves should not be confused with ‘knoppiesblaar’ (erinose).

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