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Stay in control

More and more sheep farmers are testing for anthelmintic resistance, which is great news. But, if you are facing results that indicate there is resistance to two or more of the wormer groups on your farm, what should you do?


Don’t panic is the first piece of advice. The results can initially look daunting but in most cases the situation is not bleak, and there is certainly no need to assume you can no longer use Group 1, 2 or 3 wormer products. For most farms, a close look at the results, and testing at different times of year, will show the older three groups can still be used at certain times.


If testing shows the early stages of anthelmintic resistance (AR), there are a number of actions farmers can take to slow its development. Examples include reducing the use of wormers by implementing options such as targeted treatments, grazing management and ensuring every dose is given accurately.


To help guide farmers through the key questions around multiple resistance SCOPS has put together a Decision Support Tree designed to provide you with options and actions to work through with your vet or animal health advisor.

Question Title

Do you suspect you have resistance (efficacy of less than 95%) to more than one group of anthelmintic?

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