How to Get Rid of Scale Insects — Complete Guide
About How to Get Rid of Scale Insects
Complete guide to identifying and eliminating scale insects on houseplants. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.
Here are the key things to understand: Signs: Brown or tan bumps on stems and leaves. Types: Soft scale (produce honeydew) and armored scale (hard shell). Treatment: Scrape off, rubbing alcohol, neem oil, systemic. Prevention: Inspect new plants carefully. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.
The most common reasons this occurs include: Look like brown bumps or raised spots — often mistaken for part of the plant. Don't move once settled — they attach and feed in place. Produce honeydew (soft scale) that attracts sooty mold. Very persistent — require multiple treatments. Identifying the root cause is the first step toward finding the right solution.
To resolve this, follow these recommended steps: Scrape visible scale off with a fingernail or old toothbrush. Apply rubbing alcohol with cotton swab to remaining ones. Spray with neem oil or horticultural oil every 7-10 days. For severe infestations: use systemic insecticide. Be persistent — scale are tough and require weeks of treatment. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.
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Quick Answer
What are those brown bumps?
Scale insects — they attach to the plant and don't move. Easy to mistake for natural bumps.
Overview
Complete guide to identifying and eliminating scale insects on houseplants.
Key Details
- Signs: Brown or tan bumps on stems and leaves
- Types: Soft scale (produce honeydew) and armored scale (hard shell)
- Treatment: Scrape off, rubbing alcohol, neem oil, systemic
- Prevention: Inspect new plants carefully
Common Causes
- Look like brown bumps or raised spots — often mistaken for part of the plant
- Don't move once settled — they attach and feed in place
- Produce honeydew (soft scale) that attracts sooty mold
- Very persistent — require multiple treatments
Steps
- 1Scrape visible scale off with a fingernail or old toothbrush
- 2Apply rubbing alcohol with cotton swab to remaining ones
- 3Spray with neem oil or horticultural oil every 7-10 days
- 4For severe infestations: use systemic insecticide
- 5Be persistent — scale are tough and require weeks of treatment