Severe Balcony Pest Infestation: Pyrethrin/Rotenone Rescue

Third-floor LA balcony with whiteflies, mealybugs, black bugs, green aphids—essential oils, soap, and store spray failed.

Stronger Organic Options

• Pyrethrin: Fast knockdown, short residual.
• Rotenone: Broader spectrum, stomach/contact.
• Combination products: Pyrethrin + rotenone (e.g., Pyola, Rotenone-Pyrethrin).

Application

Spray thoroughly (undersides, stems) in evening. Repeat per label. Avoid blooming plants if possible.

Last Resort: Carbaryl (Sevin)

Effective but toxic to bees, beneficials. Use only if organic options fail and infestation threatens plant survival. Follow label strictly.

Prevention for Next Time

• Inspect new plants rigorously.
• Quarantine 2 weeks.
• Sticky traps for monitoring.
• Garlic/marigold companions.