Wormwise

A closer look at drench resistance in dairy systems highlights how rapidly conventional parasite control methods are becoming less effective and why farmers need to take a more strategic approach. WormWise programme manager and veterinarian Ginny Dodunski unpacks the latest data and on-farm observations, explaining what drench resistance is, how it develops over time, and why it can remain hidden until it starts affecting animal performance.

Practices that dramatically lower ingested worm numbers in cattle are vital if the reliance on drench is to be reduced. The rapid rise in triple drench resistance in the national sheep flock is a warning. Anne Lee reports.