Syngenta will phase out paraquat from Australia by 2027. The chemical now faces stricter rules. The Swiss firm says sales will stop once existing stocks are exhausted.

A warning covers the herbicide now. Death or severe harm can follow tiny amounts. Farmers and bystanders face risk. Canberra’s regulator intervened 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.