Growli

Pest identification

What's eating my chinese windmill palm 'bulgaria'?

Scale insects

Signs: Armored or soft waxy lumps on petioles and frond undersides; yellowing fronds, honeydew, sooty mold

Control: Horticultural oil spray in late spring when crawlers are active; scrape adults; systemic insecticide for heavy infestations

Vine weevil (Otiorhynchus sulcatus)

Signs: Adults notch leaf margins; larvae in soil eat roots, causing sudden wilting and crown collapse

Control: Apply nematodes (Steinernema kraussei) to moist soil in late summer/autumn; use vine weevil killer drenches

Aphids

Signs: Clusters on emerging spear leaves, causing distortion and sticky honeydew deposits

Control: Blast off with a strong water jet; insecticidal soap spray; encourage ladybirds and lacewings

Caterpillars (various)

Signs: Irregular holes chewed in frond leaflets; most active in summer

Control: Hand-pick caterpillars; apply Bt spray targeting young larvae; remove egg masses from frond undersides

Keep chinese windmill palm 'bulgaria' pest-free

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Chinese Windmill Palm 'Bulgaria' pests — FAQ

What is eating my chinese windmill palm 'bulgaria'?

Chinese Windmill Palm 'Bulgaria' is a cold-hardy outdoor palm; its pests are primarily outdoor insects and, in some regions, animals. Scale insects are the most common threat. Vine weevil, aphids on new growth, and caterpillars can also damage it. Deer and rabbits rarely target palms but may browse young plants.

How do I get rid of scale insects on chinese windmill palm 'bulgaria'?

Armored or soft waxy lumps on petioles and frond undersides; yellowing fronds, honeydew, sooty mold Horticultural oil spray in late spring when crawlers are active; scrape adults; systemic insecticide for heavy infestations

How do I get rid of vine weevil (otiorhynchus sulcatus) on chinese windmill palm 'bulgaria'?

Adults notch leaf margins; larvae in soil eat roots, causing sudden wilting and crown collapse Apply nematodes (Steinernema kraussei) to moist soil in late summer/autumn; use vine weevil killer drenches

How do I get rid of aphids on chinese windmill palm 'bulgaria'?

Clusters on emerging spear leaves, causing distortion and sticky honeydew deposits Blast off with a strong water jet; insecticidal soap spray; encourage ladybirds and lacewings

How do I get rid of caterpillars (various) on chinese windmill palm 'bulgaria'?

Irregular holes chewed in frond leaflets; most active in summer Hand-pick caterpillars; apply Bt spray targeting young larvae; remove egg masses from frond undersides