Pest identification
What's eating my persicaria bistorta 'superba'?
Slugs and snails
Signs: Irregular holes in the broad paddle-shaped leaves; worst in the damp, waterside habitats where bistort thrives.
Control: Ferric phosphate pellets around crowns; beer traps in wet areas. Encourage natural predators such as frogs and hedgehogs. Hand-pick at night.
Aphids
Signs: Transient colonies on stem tips during warm spells; rarely severe or sustained.
Control: A strong water jet usually eliminates colonies. Insecticidal soap as a fallback. Natural enemies — ladybirds, hoverflies — typically keep populations in check.
Keep persicaria bistorta 'superba' pest-free
Healthy plants resist pests best. Get the basics right:
- What eats common bistort — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common persicaria bistorta 'superba' problems & fixes
- Persicaria bistorta 'Superba' watering schedule
- Persicaria bistorta 'Superba' light requirements
- Full persicaria bistorta 'superba' care guide
Persicaria bistorta 'Superba' pests — FAQ
What is eating my persicaria bistorta 'superba'?
Persicaria bistorta 'Superba' (bistort) is renowned as virtually trouble-free. Slugs occasionally target the large, soft leaves, especially in moist conditions it prefers. Aphids may appear transiently. Deer and rabbits rarely bother it. No serious pest threatens established clumps, making this an exceptionally low-maintenance perennial.
How do I get rid of slugs and snails on persicaria bistorta 'superba'?
Irregular holes in the broad paddle-shaped leaves; worst in the damp, waterside habitats where bistort thrives. Ferric phosphate pellets around crowns; beer traps in wet areas. Encourage natural predators such as frogs and hedgehogs. Hand-pick at night.
How do I get rid of aphids on persicaria bistorta 'superba'?
Transient colonies on stem tips during warm spells; rarely severe or sustained. A strong water jet usually eliminates colonies. Insecticidal soap as a fallback. Natural enemies — ladybirds, hoverflies — typically keep populations in check.