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

2,4,5-T phytotoxicity (494); glyphosate phytotoxicity (495).

PHOTO 494. An enlarged rendition of the incidence of aerial roots and cracks in shoots, petioles and peduncles of the grapevine as in Photo 493. Also note that the bunches are destroyed at a young stage.

PHOTO 495. Glyphosate induced toxicity in basal leaves is often manifest in instances where application occurs during bud swell. Due to the fact that translocation occurs acropetally, however, permanent damage is seldom inflicted while grapevines are still in the growing phase.

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