Nature’s Shield: Harnessing Pasture Biodiversity Against Parasites

Nature’s Shield: Harnessing Pasture Biodiversity Against Parasites

As July dawns, it’s the perfect time to explore how enhancing biodiversity in your fields can support parasite resilience—without replacing testing or treatment.

Recent UK research highlights the growing threat of parasite resistance, urging us to rethink traditional control methods. Notably, only around 21% of UK horse owners co-graze livestock, and although 73% remove droppings regularly, fewer than 5% rest paddocks for more than six months. Diversifying pasture ecosystems offers a promising supplement to these practices.

So, what does this look like on the ground?

Co-grazing with ruminants like sheep or cattle can disrupt the lifecycle of horse-specific parasites—helping manage contamination naturally. Introducing native flora corridors or allowing “wild” zones in corners supports beneficial insects and soil microbes, creating habitats that compete with parasite larvae while enhancing pasture vitality.

The emerging science around the gut microbiome is particularly exciting. Healthy soil encourages diverse gut flora in grazing horses—early studies suggest this may improve resilience against parasitic infections.

How can you safely introduce biodiversity?

• Start small—plant native hedgerows or flower strips

• Trial rotational co-grazing with sheep (always manage grazing timing carefully)

• Leave corner areas unmown to support insects and soil health

  
  

But remember: biodiversity won't replace worm testing or responsible pasture management. The key is balance. Integrating these natural elements with faecal egg count (FEC)-informed treatment supports smarter, more sustainable parasite control—a true partnership between nature and intelligent worming.