Hibiscus Scale Infestation: Systemic Treatment for Sticky Leaves and Black Mold

Potted hibiscus has sap everywhere, dark bumps on branches, black mold on leaves. Insect spray didn't help.

Diagnosis: Soft Scale + Sooty Mold

• Bumps = scale insects (scrape off with nail)
• Sap = honeydew from scale feeding
• Black mold = sooty mold on honeydew
• Contact spray failed—scales protected by shells

Solution: Systemic Soil Drench

Imidacloprid (Bayer Advanced Tree & Shrub):

1. Mix, pour on soil
2. Roots absorb → moves to leaves/stems
3. Scales die when feeding
4. Honeydew stops → mold weathers off
5. 1-year protection

Works on potted plants too. Good luck.