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

Ladybirds (532); pearl glands (533).

PHOTO 532. Based on the advantages of mealy bug control by the feeding activities of ladybirds, their presence is strongly recommended.

PHOTO 533. The incidence of harmless pearl glands on young, actively growing organs is a common phenomenon – especially during hot, humid conditions. Not to be confused with guttation or mite eggs.

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