Existing and validated forecasting models for pests and diseases should be used and the use of adequate monitoring devices by groups of growers recommended.
Cutworms: Populations should be monitored (e.g. sex pheromone traps and visual inspection) and forecasting models should be taken into account.
Other lepidopterans (and Colorado potato beetle): Monitoring for eggs and first larval stages.
Tomato leaf miner Tuta absoluta: Monitoring and use thresholds when available.
Leaf miner, white flies: Monitoring with yellow sticky traps.
Frankliniella occidentalis as vector of TSWV: Monitoring with blue sticky traps.
Monitoring: Powdery mildew – Oidium and Leveillulaby regular crop inspection.