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
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19 May 2026
Update from Professor Richard Wall
Apart from upland areas of northern Scotland, the warming weather expected in the next few weeks increases the risk of blowfly strike throughout most of northern England, Wales, Lowland Scotland and Northern Ireland. In southern areas, the risk is now well established and increasing, warm wet weather being idea for strike. Strike control measures should now be well in place.
