Blackcurrant IPM Module
Practical IPM plan for blackcurrants covering outdoor blackcurrant production and soft fruit systems.
Main focus: aphids, sawfly, spider mite, mildew and pruning hygiene.
Main pest risks
| Pest / Disease | Risk | Main trigger |
|---|---|---|
| Aphids | Moderate–High | Soft spring growth |
| Gooseberry sawfly | Moderate | Spring and early summer |
| Spider mites | Moderate | Hot dry weather |
| Mildew | Moderate–High | Dense humid canopy |
| Botrytis | Moderate | Wet fruiting periods |
Monitoring plan
Best practical rule: inspect lower leaves and inner canopy weekly during warm humid weather.
| Area | What to inspect |
|---|---|
| Shoot tips | Aphids |
| Leaves | Sawfly feeding |
| Lower canopy | Spider mite |
| Dense bushes | Mildew |
| Fruit clusters | Rot and humidity |
Environmental risk
| Condition | Likely issue |
|---|---|
| Dense humid bushes | Mildew |
| Hot dry weather | Spider mite |
| Soft spring growth | Aphids |
| Wet fruiting periods | Botrytis |
Pruning and airflow
Good bush structure improves: - airflow - fruit drying - disease reduction - harvest access - spray penetration where used
Useful practices: - remove old wood - maintain open bushes - reduce overcrowding - remove fallen debris
Key message
Blackcurrant IPM depends heavily on pruning structure, airflow and early pest monitoring.