Blowfly Watch
The Blowfly watch in conjunction with Elanco 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
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08 May 2025
Update from Professor Richard Wall
There is a strong North-South divide in the forecast blowfly strike risk the UK at present. As a result of recent warm weather, early strikes are possible in most of the southern half of the UK, but strike risk remains low in Northern and upland areas as a result of much cooler conditions. Early strike are most likely in unsheared ewes at this time of year, particularly if they are affected by faecal soiling, so early shearing and good worm control both contribute to the effective management of strike risk.
