Senator launches Senate probe into paraquat use after regulator backs herbicide

Independent Senator David Pocock successfully referred the Australian Pesticides and Veterinary Medicines Authority’s June ruling that permits ongoing use of the weedkiller paraquat to the Senate’s Rural and Regional Affairs and Transport References Committee, with backing from the Greens and the Coalition. The committee will hold a public inquiry, accepting written submissions until 22 October 2026, to scrutinise the regulator’s assessment after a three-decade review that stopped short of a ban.

Experts and health advocates contend the APVMA dismissed evidence of a causal link between paraquat exposure and Parkinson’s disease, contrary to the scientific consensus and the bans imposed by about 70 countries. Farmers’ groups, represented by WA Farmers grain council president Mark Fowler, argue the inquiry politicises a vital chemical and could threaten the agency’s independence. Parkinson’s Australia chief Olivia Nassaris welcomed the review, citing global Parkinson’s projections and urging action. The committee aims to address transparency, integrity and farmer health, with a report expected early in 2027.