Black Mold on Young Tree: Aphids and Sooty Mold Fix

Diagnosis

White fuzz (aphids) → black wipe-off coating (sooty mold on honeydew).

Small tree (reachable): Spray foliage thoroughly with Orthene (acephate)—both leaf sides.
Large tree: Soil drench Bayer Advanced Tree & Shrub Insect Control (imidacloprid). Takes 2 weeks to reach canopy; season-long control.

Aphids die → honeydew stops → sooty mold weathers off. Tree recovers fully.

Trees: Black Slime Mold Identification: A Call for Photo Submission; White Mold on Apricot Trunk and Black Spots on Fruit: Need Photos; Sooty Mold on Large Trees: Systemic Imidacloprid for Aphid Control; Black Knot on Flowering Plum/Cherry: Prune and Spray; Controlling Sooty Mold on Tulip Trees by Managing Aphids; Fir Tree Infestation: Aphids/Scale, Sooty Mold, and Systemic Treatment; Black Sticky Residue on Patio: Sooty Mold from Aphids or Scale; Black Mold on New Lawn: Identification and Treatment; Black Mold on Lawn: Slime Mold vs. Snow Mold; California Black Oak: Majestic Native Tree for Wildlife and Timber

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