Fungal pathogen (Phytophthora cinnamomi) attacks the conducting tissues of the plant, causing it to wilt and finally collapse.
Small white, pink, black or brown patches or raised bumps on leaves and stems.
Black sooty growth covering any part of the leaf, stem or branch of plants. Caused by the presences of sap sucking insects on the plants such as aphids, scale and mealybugs.
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