Soft Scale on Gardenia: Identification and Systemic Control

Strange Growths on Gardenia Stems

White, bubble-like growths with a putty consistency appear on one of three gardenia plants. Inside is a red, pudding-like substance.

Diagnosis: Soft Scale Insects

These are soft scale insects (family Coccidae) that suck plant sap. They appear smooth, cottony, or waxy, up to ¼ inch long, and excrete honeydew. Common types include black scale, brown soft scale, and European fruit lecanium.

Effective Control

Apply Bayer Advanced Tree & Shrub Insect Control as a soil drench in spring. Roots take up the systemic insecticide, which kills scales when they feed. Available at garden centers.

Product Link

Bayer Advanced Tree & Shrub Insect Control