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Camellia 'Jury's Yellow' Sooty Mold: Same Insect Cause

Margaret's 'Jury's Yellow' camellia has wipeable black deposits on lower leaves and buds. Identical diagnosis: sooty mold from sap-feeding insects (aphids, whiteflies, scales, leafhoppers).

Treatment

Wash leaves (especially undersides) to dislodge insects.
Apply horticultural oil or insecticidal soap to eliminate insects.
Mold will disappear once honeydew source is gone.

Plant Diseases: Combating Camellia Dieback and Canker with Pruning and Fungicides; Sooty Mold on Citrus: Controlling the Underlying Insect Infestation Safely; Sapsucker Damage on Young Oak: Same Culprit, Different Tree; Camellia Black Coating: Sooty Mold from Insects; Black Knot Disease on Plum: Pruning and Fungicide Protocol; Leaf Spots on ‘Mine‑No‑Yuki’ Camellia After Record Rainfall; Sooty Mold on Camellia Hedge: Caused by Scale Insects; Camellia Sooty Mold in Belgium: Same Cause, Same Cure; Black Spot on Roses: Management, Not Cure; Black Knot on Mulberry: Prune and Destroy

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