Pest identification
What's eating my moore's blechnum?
Scale insects
Signs: Hard brown waxy bumps on frond midribs and petioles; yellowing, sticky fronds
Control: Wipe off with rubbing alcohol on a cotton swab or soft brush; treat with horticultural oil spray every 2 weeks
Spider mites
Signs: Fine webbing and yellow stippling on frond undersides; fronds dry out rapidly in low humidity
Control: Shower fronds weekly; use a pebble tray for humidity; apply insecticidal soap spray every 5–7 days
Fungus gnats
Signs: Larvae damage fine roots; adults hover around compost surface; plant wilts despite adequate watering
Control: Allow top inch of compost to dry before rewatering; use yellow sticky traps; apply Bti soil drench
Keep moore's blechnum pest-free
Healthy plants resist pests best. Get the basics right:
Moore's Blechnum pests — FAQ
What is eating my moore's blechnum?
Moore's Blechnum is a compact fern grown as a houseplant, most susceptible to scale insects and spider mites. Mealybugs shelter at the base of its ladder fronds. Fungus gnats are common when soil stays too wet. Inspect the underside of fronds and keep humidity consistently above 50% to deter mites.
How do I get rid of scale insects on moore's blechnum?
Hard brown waxy bumps on frond midribs and petioles; yellowing, sticky fronds Wipe off with rubbing alcohol on a cotton swab or soft brush; treat with horticultural oil spray every 2 weeks
How do I get rid of spider mites on moore's blechnum?
Fine webbing and yellow stippling on frond undersides; fronds dry out rapidly in low humidity Shower fronds weekly; use a pebble tray for humidity; apply insecticidal soap spray every 5–7 days
How do I get rid of fungus gnats on moore's blechnum?
Larvae damage fine roots; adults hover around compost surface; plant wilts despite adequate watering Allow top inch of compost to dry before rewatering; use yellow sticky traps; apply Bti soil drench