Pest identification
What's eating my western sword fern?
Mealybugs
Signs: Fluffy white waxy deposits at the base of fronds and along the rhizome; weakened, yellowing growth
Control: Remove with alcohol-dipped cotton swabs; apply insecticidal soap spray every 7 days; ensure good airflow around the plant
Scale insects
Signs: Hard or soft brown bumps on stems and frond undersides; honeydew and sooty mold follow
Control: Scrape off visible scales; treat with neem oil or horticultural oil; repeat applications every 10–14 days
Spider mites
Signs: Stippling and bronzing of leaflets; fine webbing visible in severe infestations
Control: Raise ambient humidity; shower the plant to knock mites off; treat with insecticidal soap or diluted neem oil
Keep western sword fern pest-free
Healthy plants resist pests best. Get the basics right:
Western Sword Fern pests — FAQ
What is eating my western sword fern?
Western Sword Fern kept as a houseplant is primarily vulnerable to mealybugs and scale insects in the warm indoor environment. Spider mites may appear in low-humidity rooms. Outdoors it can face slug damage on emerging fronds, but indoor growers should focus on good airflow and humidity control.
How do I get rid of mealybugs on western sword fern?
Fluffy white waxy deposits at the base of fronds and along the rhizome; weakened, yellowing growth Remove with alcohol-dipped cotton swabs; apply insecticidal soap spray every 7 days; ensure good airflow around the plant
How do I get rid of scale insects on western sword fern?
Hard or soft brown bumps on stems and frond undersides; honeydew and sooty mold follow Scrape off visible scales; treat with neem oil or horticultural oil; repeat applications every 10–14 days
How do I get rid of spider mites on western sword fern?
Stippling and bronzing of leaflets; fine webbing visible in severe infestations Raise ambient humidity; shower the plant to knock mites off; treat with insecticidal soap or diluted neem oil