Troubleshooting
Orange Glow Firethorn problems — and how to fix them
Orange Glow Firethorn (Pyracantha 'Orange Glow') 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.
Fireblight
Prune infected shoots back at least 30 cm into healthy wood; sterilise tools with disinfectant between each cut.
Pyracantha scab
Apply preventative copper or mancozeb fungicide from bud burst in wet seasons; remove and dispose of infected material.
Woolly aphid
Woolly white colonies on young growth; systemic insecticide or vigorous pruning of infested tips controls outbreaks.
Overly vigorous growth
Can become very large if not managed; prune back long shoots to a spur after flowering to maintain shape without sacrificing berries.
Prevent orange glow firethorn problems before they start
Most orange glow firethorn issues are care-mismatch, not bad luck. Dial in the basics:
Orange Glow Firethorn problems — FAQ
Why is my orange glow firethorn fireblight?
Prune infected shoots back at least 30 cm into healthy wood; sterilise tools with disinfectant between each cut.
Why is my orange glow firethorn pyracantha scab?
Apply preventative copper or mancozeb fungicide from bud burst in wet seasons; remove and dispose of infected material.
Why is my orange glow firethorn woolly aphid?
Woolly white colonies on young growth; systemic insecticide or vigorous pruning of infested tips controls outbreaks.
Why is my orange glow firethorn overly vigorous growth?
Can become very large if not managed; prune back long shoots to a spur after flowering to maintain shape without sacrificing berries.