Those of you who attended our sheep field day will be aware we have identified a case of ‘triple resistance’ in our area.
Given that the idea of a quarantine drench is to prevent drench resistant worms getting onto your property it is essential that the drench is 100% effective and kills all worms! With our recent finding and the identification of triple drench resistant worms in other areas, the use of a triple drench for quarantining can no longer be seen as the ’gold standard option’.
There is now a stronger argument for using Zolvix or Startect as quarantine drenches.
The argument for their use is even greater if lambs/ewes after drenching go onto low refugia environments such as crops, plantain, chicory or pastures that have been free from sheep grazing for some time. Contact the clinic if you wish to discuss this issue in more detail.