The Fertilizer and Nutrition Guide provides essential information on feeding plumeria for optimal growth and bloom performance, including how to choose the right fertilizers, balance nutrients, manage pH, and apply supplements for sustained health and vitality.
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What causes black or sooty mold on Plumeria leaves?
Black or sooty mold on Plumeria leaves is often a secondary symptom of aphid or scale insect infestations. These pests excrete honeydew, which serves as a medium for the growth of black mold. Treat the underlying pest issue to eliminate honeydew and, in turn, prevent black mold. Use insecticidal soaps or horticultural oils to control aphids or scale insects. Encourage beneficial insects to help keep pest populations in check.