Due to reports of fly season starting earlier and lasting longer, sheep farmers are being urged to apply blowfly strike protection early in the season to prevent strike and stop the first wave of blowflies from breeding.

Matt Colston, ruminant technical consultant at Elanco Animal Health, explains that the timing and resulting severity of blowfly strike is weather dependent, with blowfly activity starting soon after soil temperatures rise above 9°.

“We’ve already seen some warm temperatures this year, causing over wintered larval stages to hatch out as adult flies in some regions,” he said.

With warmer weather expected in the coming months, Colston explains all sheep farmers must be aware of this growing risk as it is easy to get caught out.

Given the significant health, welfare and financial implications associated with a single case of blowfly strike, protecting your flock early in the season is strongly recommended.

“The benefits of early treatment with an Insect Growth Regulator (IGR) such as CLiK are two-fold," Colston continued.

"On top of preventing blowfly strike in treated animals, early treatment also helps stop the first wave of flies from breeding, which significantly reduces blowfly numbers and therefore the risk of strike later in the season,” said Colston.

“For those looking for the longest lasting protection, CLiK Extra is the best option, offering 19 weeks of cover. CLiKZiN on the other hand offers eight week’s protection and just seven-days meat withdrawal, so is suitable for fat lambs that will be finished and away promptly, or to protect adult sheep pre-shearing,” he advised.

Correct administration is key to delivering the best results and return on investment. Colston explains that the improper application of IGR’s can be costly and risk a reduction in control levels.

Colston said:

To get the most out of preventive fly control treatments, Colston recommended applying IGR treatment early in the season and taking the following steps:

The do’s and don’ts of fly control:

Click here for guidance on blowfly strike prevention and treatment.

Terms and conditions apply

Spreads to areas covered by fleece, other areas may not be protected, including the feet 1National Farm Research Unit, Blowfly Study April 2018. CLiK EXTRA 65 mg/ml Pour-On Suspension for sheep contains dicyclanil and is indicated for the prevention of blowfly strike on sheep caused by Lucilia sericataor Wohlfahrtia magnifica. CLiK Pour-On for sheep contains 5% (w/v) dicyclanil and is indicated for the prevention of blowfly strike due to Lucilia sericata or Wohlfahrtia magnifica on sheep CLiKZiN Pour-On Suspension for Sheep contains the active ingredient dicyclanil and is indicated for the prevention of blowfly strike on sheep due to Lucilia sericata. Legal category for all: POM in IE.

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. CLiK EXTRA, CLiK, CLiKZiN, FleeceBind, Elanco and the diagonal bar logo are trademarks of Elanco or its affiliates. Use medicines responsibly (www.apha.ie). Advice should be sought from the prescriber prior to use. PM-IE-22-0118