Vine & Wine Grape IPM Module
Practical IPM plan for vines and wine grapes covering outdoor vineyards and protected vine systems.
Main focus: powdery mildew, Botrytis, spider mite, mealybug and canopy airflow.
Main pest and disease risks
| Pest / Disease | Risk | Main trigger |
|---|---|---|
| Powdery mildew | Very High | Humidity and dense canopy |
| Botrytis | High | Wet bunches |
| Spider mites | Moderate | Hot dry periods |
| Mealybug | Moderate | Dense bark and shelter |
| Thrips | Low–Moderate | Flowering and heat |
Monitoring plan
Best practical rule: inspect bunch zones and shaded canopy areas weekly during humid periods.
| Area | What to inspect |
|---|---|
| Bunch zones | Botrytis and mildew |
| Lower leaves | Spider mites |
| Bark shelters | Mealybug |
| Dense canopy | Humidity pockets |
Environmental risk
| Condition | Likely issue |
|---|---|
| Dense canopy | Mildew and Botrytis |
| Wet bunches | Rot |
| Poor airflow | Humidity build-up |
| Hot dry weather | Spider mite |
Canopy management
Good canopy structure improves: - airflow - bunch drying - spray penetration - disease reduction - harvest access
Useful practices: - leaf stripping around bunches - reducing overcrowding - maintaining open rows
Key message
Vine IPM depends heavily on canopy structure, airflow and bunch-zone management.