Mealybug Infestation on African Violet, Jade, Jasmine, Philodendron: Alcohol Spray Protocol

Joan's plants: white fuzzy growth at leaf-stem joints, sticky floor/leaves. Violet discarded, Jade trimmed, now Philodendron affected (Feb). Asks ID, spray, cause.

ID: Mealybugs

White, cottony, sticky (honeydew), hide in leaf axils. Juveniles lack wax, hide unseen — that's why they "reappear."

Eradication Protocol (Will Creed)

1. Mix 1 part isopropyl alcohol : 8–10 parts water.
2. Spray all surfaces to drip point — tops, undersides, stems, crown.
3. Repeat in 5–7 days (catches hatchlings).
4. Weekly checks thereafter.

Critical Rules

• No spraying in direct sun or >75°F.
• Test on few leaves first; wait 2 days.
• Q-tip dabbing misses hidden ones — spray coverage is key.

Cause

Mealybugs often come on new plants. Quarantine + inspect all arrivals. Sticky honeydew attracts ants/sooty mold.

Persistence + thorough coverage = win.