Apple IPM Module
Practical IPM plan for apples covering dessert apples, cider apples and orchard systems.
Main focus: aphids, codling moth, apple sawfly, spider mite, scab, mildew and canopy airflow.
Main pest risks
| Pest / Disease | Risk | Main trigger |
|---|---|---|
| Aphids | High | Soft spring growth |
| Codling moth | Moderate–High | Warm summer periods |
| Apple sawfly | Moderate | Blossom period |
| Spider mites | Moderate | Hot dry weather |
| Apple scab | Very High | Wet foliage |
| Powdery mildew | High | Humid stagnant canopy |
Monitoring plan
Best practical rule: inspect blossom, developing fruit and dense canopy zones weekly during humid periods.
| Area | What to inspect |
|---|---|
| Blossom clusters | Sawfly and blossom disease |
| Young fruit | Codling damage |
| Lower leaves | Spider mite |
| Dense canopy | Scab and mildew |
| Fallen fruit | Pest reservoirs |
Environmental risk
| Condition | Likely issue |
|---|---|
| Wet humid canopy | Scab |
| Dense foliage | Mildew |
| Hot dry weather | Spider mite |
| Fallen fruit | Codling moth carryover |
Disease pressure
Apple disease pressure increases where: - foliage stays wet - airflow is poor - old infected material remains - pruning structure becomes dense
Useful practices: - maintain open canopy - remove infected fruit - improve dry-down - reduce dense internal growth
Key message
Apple IPM depends heavily on canopy structure, airflow and prevention of disease carryover.