88% confidence Based on 20,000+ analyzed cases

Scale on cast iron plant

cast iron plant with scale

What's Happening

Scale insects feed on plant sap; can spread from other plants or new purchases

How to Fix It

  1. 1

    Manually scrape off with alcohol-dipped cotton swab or soft toothbrush

  2. 2

    Treat with neem oil or insecticidal soap

  3. 3

    Full repot: discard soil, rinse roots, clean pot with bleach

  4. 4

    Use systemic insecticide for persistent infestations

  5. 5

    Isolate plant for 2-4 weeks minimum

How to Prevent It

Quarantine new plants; inspect regularly; maintain good airflow

Related Problems

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Frequently Asked Questions

What causes scale on my plant?
Scale insects feed on plant sap; can spread from other plants or new purchases
How do I fix scale?
Manually scrape off with alcohol-dipped cotton swab or soft toothbrush. Treat with neem oil or insecticidal soap.
How do I prevent scale from happening again?
Quarantine new plants; inspect regularly; maintain good airflow