A farmer collective breeding for parasite resistant genetics claim they are leading the pack as drench resistance becomes more prevalent and drench failure is reported NZ-wide.

Effective management of worms in sheep, cattle and other ruminants is no longer a one tool job.

Parasites in sheep will become more of a problem for New Zealand farmers as temperatures rise with climate change, says AgResearch principal scientist John McEwan.

A new AgResearch science project is believed to be the first of its kind in the world.

Not treating heavier Merino ewes for worms, and dosing lighter ewes, may help avoid drench resistance, Australian research suggests. The new strategies to control scour worms are being developed at Murdoch University, Western Australia.

A Northland businessman is developing an environmentally friendly system of cleaning and reusing dairy shed washdown water; he says it will reduce costs and control nitrogen runoff.