Farm Animal Welfare

Sheep Blowfly Monitoring and Forecasting

Blowfly strike risk can now be forecasted using weather data and fly population models, allowing farmers to time preventive treatments more effectively and reduce both parasite burden and chemical use.

Key Facts

The NADIS Parasite Forecast provides regional blowfly risk assessments for UK farmers
Warm, humid conditions following rainfall create peak fly strike risk periods
Monitoring fly populations using traps allows farm-specific risk assessment
Targeted preventive treatment at high-risk periods reduces total chemical use
Early warning systems reduce both animal suffering and unnecessary treatment

Welfare Considerations

Blowfly forecasting represents a precision welfare approach - using data to target interventions where and when they are most needed. Farmers who monitor blowfly risk can protect their sheep during high-risk periods without treating unnecessarily during low-risk periods. This approach is better for animal welfare, reduces chemical use and supports antiparasitic drug stewardship.

What You Can Do

Subscribe to blowfly risk forecasting services in your region
Use fly traps to monitor farm-specific blowfly pressure
Integrate forecasting into flock health plans to optimise preventive treatment timing