Blowfly Watch
The Blowfly watch predicts the emergence of blowflies based on Met Office Data. This can help to predict risk of clinical cases and help treatment timings.
Forecast PDF
Low
Medium
High
08 June 2026
Update from Professor Richard Wall
Despite the relatively cool and wet late May/early June weather, the strike risk should now be considered to be high across the entire UK. The return of warm later in June is likely to be associated with a markedly higher and growing strike challenge as we head into mid summer, particularly in lambs and any unshorn ewes.
