Farmers fear weedkiller made them ill – but it’s still used in Australia

Farmers fear this weedkiller made them sick. Why hasn’t Australia banned it?

Jun 19, 2026, updated Jun 19, 2026

Parkinson’s is the world’s fastest-growing neurological disorder. And in some Australian farming communities, doctors are questioning why so many seem to be getting it.

For years, some farmers and doctors have drawn a link to paraquat – a powerful weedkiller that is still used widely on Australian farms, despite being banned in more than 60 countries, including Britain, China and Brazil.

This month, Australia’s chemical regulator is expected to decide whether paraquat can continue to be used here – after a review that has run since 1997.

Associate Professor Wesley Thevathasan is one of about 50 neurologists who made submissions to that review, calling for paraquat to be banned. But he says the regulator has ignored them – as well as some of the strongest evidence linking exposure to the chemical to Parkinson’s.

Today, Thevathasan on the farmers who fear that paraquat has made them sick, and whether Australia’s regulator is listening.

If you enjoy 7am, the best way you can support us is by making a contribution at 7ampodcast.com.au/support.

Farmer audio courtesy of ABC rural.

Socials: Stay in touch with us on Instagram

Want to see more stories from InDaily Qld in your Google search results?

  1. Click here to set InDaily Qld as a preferred source.
  2. Tick the box next to "InDaily Qld". That's it.
Podcast