White Powder on African Violet Leaves: Mealybugs, Not Fungus—Easy Fix with Neem Oil

Common Misdiagnosis

An African violet owner sees white fuzzy spots on leaves and assumes fungus. In most cases, these are mealybugs—slow, cottony insects that cluster on leaf undersides and stems, often mistaken for mildew.

Why Neem Oil Is Ideal

• Organic, broad-spectrum: kills insects, mites, and fungi.
• Safe for indoor use on houseplants.
• Available in ready-to-spray bottles at garden centers and hardware stores.

Treatment Protocol

1. Isolate the plant to prevent spread.
2. Spray thoroughly, covering leaf undersides, stems, and soil surface.
3. Repeat every 5–7 days for 3–4 treatments.
4. Wipe off dead mealybug residue with cotton swabs for aesthetics.

Prevention

• Inspect new plants before introducing them.
• Avoid overwatering; mealybugs thrive on stressed plants.
• Provide good air circulation.

Neem oil resolves the issue whether it's mealybugs or actual fungus—one product covers both.