Pest identification
What's eating my elk's horn fern?
Scale insects
Signs: Hard brown or tan bumps on the antler fronds and around the base; fronds yellow and feel weakened.
Control: Carefully dab each scale with a cotton swab in neem oil or isopropyl alcohol; avoid wetting the shield fronds excessively; repeat every 10 days.
Mealybugs
Signs: White waxy clusters at the base of fertile fronds and along the frond undersides; honeydew attracts ants and moulds.
Control: Spot-treat with 70% isopropyl alcohol; apply dilute neem oil spray to affected fronds weekly until clear.
Spider mites
Signs: Fine pale speckling across the stellate-haired frond surface; webbing near frond tips in low-humidity rooms.
Control: Increase room humidity, gently wipe fronds with a damp cloth, and use insecticidal soap spray every 5–7 days for three cycles.
Keep elk's horn fern pest-free
Healthy plants resist pests best. Get the basics right:
Elk's Horn Fern pests — FAQ
What is eating my elk's horn fern?
Elk's Horn Fern (Platycerium alcicorne) is most threatened by scale insects sheltering on the fertile fronds and basal shield fronds. Mealybugs are common at frond bases. Spider mites attack in very dry air. The shield fronds are part of the plant's structure — never remove them, even when treating pests.
How do I get rid of scale insects on elk's horn fern?
Hard brown or tan bumps on the antler fronds and around the base; fronds yellow and feel weakened. Carefully dab each scale with a cotton swab in neem oil or isopropyl alcohol; avoid wetting the shield fronds excessively; repeat every 10 days.
How do I get rid of mealybugs on elk's horn fern?
White waxy clusters at the base of fertile fronds and along the frond undersides; honeydew attracts ants and moulds. Spot-treat with 70% isopropyl alcohol; apply dilute neem oil spray to affected fronds weekly until clear.
How do I get rid of spider mites on elk's horn fern?
Fine pale speckling across the stellate-haired frond surface; webbing near frond tips in low-humidity rooms. Increase room humidity, gently wipe fronds with a damp cloth, and use insecticidal soap spray every 5–7 days for three cycles.