Magnolia Bush Scale and Sooty Mold: Systemic Insecticide

Chicago magnolia bush: silvery wart bumps on lower branches, foul soil odor, flies. Blooms well in spring.

Diagnosis

Apply Bayer Advanced Tree & Shrub Insecticide (imidacloprid soil drench)—systemic, kills scales in ~1 week, protects 1 year.

Plant Diseases: Combating Camellia Dieback and Canker with Pruning and Fungicides; Lilac Sudden Leaf Curl and Decline: Multiple Possible Diseases + Neighbor’s Overwatering; Magnolia Scale and Sooty Mold: Insecticide Needed Beyond Hand-Picking; Yard-Wide Stunted Growth: Soil Compaction, Nematodes, and Testing; White Root Threads: Beneficial Mycorrhizal Fungi, Not Disease; Dogwood Leaf Scorch in Sandy Soil: Environmental Stress, Not Fungus; Root Rot in Garden Beds: Diagnosing and Treating Soil-Borne Fungal Disease; Treating Soilborne Fungus Killing Pelargoniums and Other Plants; Magnolia Shrub vs. Tree: Pruning to Tree Form Anytime; Diagnosing Butterfly Bush Decline: Mites vs. Transplant Shock

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