Troubleshooting
Raspberry 'Heritage' problems — and how to fix them
Raspberry 'Heritage' (Rubus idaeus 'Heritage') 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.
Grey mould (Botrytis)
Fuzzy brown rot on ripening berries in humid, still weather. Improve airflow by thinning canes and pick fruit promptly; remove infected berries.
Raspberry beetle / fruit grubs
Small larvae inside ripe berries. Cultivate soil around plants over winter and pick fruit early; pheromone traps reduce adult numbers.
Spreading by suckers
Vigorous runners colonise neighbouring beds. Install a root barrier or dig out stray canes each spring to keep the row contained.
Cane diseases (spur blight, cane blight)
Dark blotches and dieback on canes. Cut out and burn affected canes, avoid overcrowding, and don't replant raspberries in old raspberry ground.
Prevent raspberry 'heritage' problems before they start
Most raspberry 'heritage' issues are care-mismatch, not bad luck. Dial in the basics:
- Common raspberries problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Raspberry 'Heritage' watering schedule
- Raspberry 'Heritage' light requirements
- Best soil mix for raspberry 'heritage'
- Raspberry 'Heritage' temperature & humidity
- Full raspberry 'heritage' care guide
Looking for raspberry 'heritage' in general rather than its problems? Read the full raspberry 'heritage' care guide — light, water, soil and feeding.
Raspberry 'Heritage' problems — FAQ
Why is my raspberry 'heritage' grey mould (botrytis)?
Fuzzy brown rot on ripening berries in humid, still weather. Improve airflow by thinning canes and pick fruit promptly; remove infected berries.
Why is my raspberry 'heritage' raspberry beetle / fruit grubs?
Small larvae inside ripe berries. Cultivate soil around plants over winter and pick fruit early; pheromone traps reduce adult numbers.
Why is my raspberry 'heritage' spreading by suckers?
Vigorous runners colonise neighbouring beds. Install a root barrier or dig out stray canes each spring to keep the row contained.
Why is my raspberry 'heritage' cane diseases (spur blight, cane blight)?
Dark blotches and dieback on canes. Cut out and burn affected canes, avoid overcrowding, and don't replant raspberries in old raspberry ground.