A small mite which is yellow or olive-coloured with dark patches on both sides of its body. They measure less than 1 mm in length and can appear in large numbers on the undersides of leaves. In due course, they create fine webs that cover the plants on which they walk. In autumn, the mites turn deep red in colour. The mites extract the contents of the leaf cells which produces a mottling effect on the upper leaf surfaces. Heavy infestations produce the characteristic webs and if not controlled, the leaves go brown and drop...

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