B+LNZ Wormwise programme

Worms in your farm system

Levels of worm challenge to stock is strongly influenced by stock policies and nutrition, and by forage type. Grazing management and integration of different stock classes can be used to reduce worm challenge to susceptible stock. 

illustration of sheep on farm

Sheep farm systems and worms

Learn about how different farm systems and policies set up different levels of risk – both for worm challenge, and for drench resistance. 

image of farm animated

Cattle farming systems and worms

Learn about how different farm systems and policies set up different levels of risk – both for worm challenge, and for drench resistance. We also highlight some management ideas and risk mitigations.

image of sheep and lambs with genetics symbol

Animal genetics and worms

What’s the story with genetics for worm management? Aren’t worm-resistant sheep poor performers? What’s the difference between resistance and resilience? Who’s CarLA (hint: It’s not your sister’s mate from Temuka).

image of two lambs grazing illustration

Grazing management

Does rotational grazing help reduce the number of worms on pasture? Does grazing sheep and cattle together help manage worms? How long do I need to wait for worm larvae numbers to drop before grazing a paddock again? You’ll find the answers in this section.

image of forages and soil

Forages and worms

Learn about worm challenge on different forage types, and approaches to managing worms and drench inputs while animals are grazing crops.