Pest identification
What's eating my lemon button fern?
Spider mites
Signs: Tiny pale spots on small round leaflets; fronds look dull and dry despite adequate watering
Control: Mist foliage daily, shower the plant regularly, apply insecticidal soap spray; keep above 50% ambient humidity
Scale insects
Signs: Small raised bumps on frond undersides and stems; sticky coating on surfaces below
Control: Remove manually with a cotton swab dipped in alcohol, follow with neem oil spray; repeat in 14 days
Fungus gnats
Signs: Larvae in wet soil destroy fine feeder roots; plant loses vigour; adults hover near the pot
Control: Water more sparingly, use well-draining mix, apply sticky traps and Bti (e.g. Gnatrol) for severe infestations
Keep lemon button fern pest-free
Healthy plants resist pests best. Get the basics right:
- What eats lemon button fern — the species this cultivar belongs to
- What eats lemon button fern — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Common lemon button fern problems & fixes
- Lemon Button Fern watering schedule
- Lemon Button Fern light requirements
- Full lemon button fern care guide
Lemon Button Fern pests — FAQ
What is eating my lemon button fern?
Lemon Button Fern (Nephrolepis cordifolia 'Duffii') is a petite, slow-growing fern most troubled by spider mites when humidity drops, and by scale insects hiding among its small, button-like leaflets. Fungus gnats are a risk if the soil stays too moist. Regular misting and good drainage prevent most problems.
How do I get rid of spider mites on lemon button fern?
Tiny pale spots on small round leaflets; fronds look dull and dry despite adequate watering Mist foliage daily, shower the plant regularly, apply insecticidal soap spray; keep above 50% ambient humidity
How do I get rid of scale insects on lemon button fern?
Small raised bumps on frond undersides and stems; sticky coating on surfaces below Remove manually with a cotton swab dipped in alcohol, follow with neem oil spray; repeat in 14 days
How do I get rid of fungus gnats on lemon button fern?
Larvae in wet soil destroy fine feeder roots; plant loses vigour; adults hover near the pot Water more sparingly, use well-draining mix, apply sticky traps and Bti (e.g. Gnatrol) for severe infestations