Rose IPM Module
Practical IPM plan for roses covering protected roses, cut roses and ornamental rose production.
Main focus: aphids, spider mite, thrips, mildew and Botrytis.
Main pest risks
| Pest | Risk | Main trigger |
|---|---|---|
| Aphids | High | Soft shoots |
| Spider mites | High | Hot dry crops |
| Thrips | High | Flowers |
| Powdery mildew | High | Humidity and poor airflow |
| Botrytis | Moderate | Wet flowers |
Monitoring plan
Best practical rule: inspect flowers and lower leaves weekly. Roses often develop hidden hotspots inside dense flower growth.
| Area | What to inspect |
|---|---|
| Flowers | Thrips and Botrytis |
| Young shoots | Aphids |
| Lower leaves | Spider mite |
| Dense canopy | Mildew and humidity |
Environmental risk
| Condition | Likely issue |
|---|---|
| Warm flowers | Thrips |
| Hot dry canopy | Spider mite |
| Humid stagnant air | Mildew |
| Wet flowers | Botrytis |
Flower inspections
Flower inspections are critical in roses because: - thrips hide inside blooms - Botrytis starts in petals - hotspots spread quickly through flower blocks
Useful practices: - inspect blooms closely - remove damaged flowers - improve airflow - avoid prolonged humidity
Key message
Rose IPM is strongly linked to flower inspections, airflow and early hotspot management.