Syngenta will withdraw paraquat from Australia by 2027. The chemical now faces tighter rules. The Swiss firm says sales will halt once existing stocks run out.

A warning covers the herbicide now. Death or severe harm can follow trace amounts. Farmers and bystanders face risk. Canberra’s regulator stepped in after years of warnings.

Dozen of countries already banned paraquat. Health groups pushed for a block on sales. No new shipments will arrive after 2027.