Troubleshooting
Dahlia 'Orange Mullet' problems — and how to fix them
Dahlia 'Orange Mullet' (Dahlia 'Orange Mullet') 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.
Powdery mildew
Dense pompon petals hold humidity; improve air circulation and apply potassium bicarbonate spray at the first signs of white powdery deposits on leaves.
Aphids
Infest soft shoot tips; knock off with a forceful water spray or treat with insecticidal soap.
Earwigs
Damage the tightly packed petals of pompon types at night; set newspaper traps near plant bases.
Tuber rot
Poor drainage or overwatering causes soft, foul-smelling tubers; improve drainage and plant in raised beds if the problem is persistent.
Botrytis
Grey mould develops on petals and leaves in cool, wet conditions; remove affected material and treat with a suitable fungicide.
Prevent dahlia 'orange mullet' problems before they start
Most dahlia 'orange mullet' issues are care-mismatch, not bad luck. Dial in the basics:
Dahlia 'Orange Mullet' problems — FAQ
Why is my dahlia 'orange mullet' powdery mildew?
Dense pompon petals hold humidity; improve air circulation and apply potassium bicarbonate spray at the first signs of white powdery deposits on leaves.
Why is my dahlia 'orange mullet' aphids?
Infest soft shoot tips; knock off with a forceful water spray or treat with insecticidal soap.
Why is my dahlia 'orange mullet' earwigs?
Damage the tightly packed petals of pompon types at night; set newspaper traps near plant bases.
Why is my dahlia 'orange mullet' tuber rot?
Poor drainage or overwatering causes soft, foul-smelling tubers; improve drainage and plant in raised beds if the problem is persistent.
Why is my dahlia 'orange mullet' botrytis?
Grey mould develops on petals and leaves in cool, wet conditions; remove affected material and treat with a suitable fungicide.