First blowfly strike cases of 2019 reported

Blowfly Tracker

The first cases of blowfly strike in 2019 has been reported in several locations in the UK via the Elanco Blowfly Strike Tracker (

The interactive map produced by Elanco highlights areas hit with blowfly strike in real time, to deliver the most comprehensive and immediate warning. An ongoing collaboration with NADIS (National Animal Disease Information Service) also offers farmers real-time updates on blowfly risk along with expert industry advice.

The first case of strike was reported in Glamorgan, with several more reports coming in from Somerset, Lincolnshire, Dorset, and Caernarfonshire. “Blowfly season has arrived, with multiple reports in quick succession,” says Kate Heller, Technical Vet at Elanco. “The costs of inaction when it comes to blowfly strike far outweigh the costs of protection – the time to act is now.”

“With 99% of farmers having suffered financial losses as a result of blowfly strike¹, the potential impact on your flock simply isn’t worth the risk. Farms need to take control — and take control early — by using a preventative IGR product with full fleece protection.”

Kate Heller is clear that just monitoring symptoms is not an effective strategy. “By the time symptoms show themselves, it’s often too late. It’s easy to overlook even one struck sheep, and blowfly strike can cause huge damage in very little time. In addition, using protection early reduces risk later in the season by ensuring a much lower fly count as the season progresses.”2

“When farmers are looking at treatment options, they need to look the longest protection with an IGR that binds to the fleece – It is now possible to get 19 weeks blowfly strike prevention.”

To see the map or report a case of blowfly strike on your farm, and alert farmers in your area, go to cent

¹ Elanco survey via NSA of 130 sheep farmers, April 2016

2. Richard Wall Blowfly strike: biology, epidemiology and control. In Practice. 2015.

For further information call Elanco Animal Health on +44 (0) 1256 353131 or write to Elanco Animal Health, Lilly House, Priestley Road, Basingstoke, Hampshire, RG24 9NL.

CLiKTM EXTRA contains 65mg/ml dicyclanil. Legal category: POM-VPS. The product is indicated for the prevention of blowfly strike on sheep caused by Lucilia sercata or Wohlfahrtia magnifica. Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics. Advice should be sought from the medicine prescriber. Elanco, CLiK EXTRA and the diagonal bar logo are trademarks of Elanco or its affiliates. Use Medicines Responsibly ( ©2019 Elanco or its affiliates. PM-UK-19-0320.