Troubleshooting
Auricula problems — and how to fix them
Auricula (Primula auricula) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Vine weevil
One of the most serious threats to pot-grown auriculas; larvae eat roots from below causing sudden wilting and collapse. Apply biological nematode control (Steinernema kraussei) in late summer and autumn.
Aphids and root aphids
Both foliar and root-feeding aphids attack auriculas; root aphids are particularly difficult to spot — check roots when repotting and treat with a systemic insecticide or drench if colonies are found.
Grey mould (Botrytis cinerea)
Affects leaves and flower stems in damp, still conditions; remove dead material promptly and improve air circulation, especially when overwintering under glass.
Prevent auricula problems before they start
Most auricula issues are care-mismatch, not bad luck. Dial in the basics:
Auricula problems — FAQ
Why is my auricula vine weevil?
One of the most serious threats to pot-grown auriculas; larvae eat roots from below causing sudden wilting and collapse. Apply biological nematode control (Steinernema kraussei) in late summer and autumn.
Why is my auricula aphids and root aphids?
Both foliar and root-feeding aphids attack auriculas; root aphids are particularly difficult to spot — check roots when repotting and treat with a systemic insecticide or drench if colonies are found.
Why is my auricula grey mould (botrytis cinerea)?
Affects leaves and flower stems in damp, still conditions; remove dead material promptly and improve air circulation, especially when overwintering under glass.