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

Normal winter bud (332); bud mite (333).

PHOTO 332. A cross-section of a dormant winter bud. Based on the normal, healthy morphological appearance of the bract leaf enfolded primary, secondary and tertiary buds, the incidence of bud mite can be excluded in this instance.

PHOTO 333. A microscopic version of the incidence and feeding activities of bud mites in a dormant winter bud. It is obviously possible that primary buds, especially, can be thus damaged and even destroyed – which will completely impair normal bud burst.

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