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

Choking/strangulation.

PHOTO 507. A typical example of a strangled cordon arm in this Shiraz grapevine. The deeply grooved rope is hard to spot where it is still in position (practically against the fork).

PHOTO 508. Due to the possibility of strangulating effects at a later stage, winding of cordon arms around wires during grapevine development is considered extremely unwise.

A Guide to Grapevine Abnormalities in South Africa • 327