Senate Defeats Motion to Investigate Paraquat Ruling
The Australian Senate voted down a motion to review the decision not to ban the chemical paraquat.
Updated on Oct. 21, 2026 in Agriculture
Live Poll
Should the government implement stricter regulations on the use of agricultural herbicides like paraquat?
The Australian Senate rejected a motion on 20 October 2026 to investigate the recent ruling by the APVMA to keep paraquat on the market. The motion was defeated by 26 votes to 15.
Why it matters
The proposed inquiry sought to examine the regulatory decision not to ban paraquat, following a 2024 ABC Landline report that linked the chemical to Parkinson's disease. Supporters of the motion aimed to mandate public hearings and testimony from APVMA delegates regarding the chemical's safety.
The APVMA has reduced the maximum application rate for paraquat from 1150g/ha to 231g/ha. The senate vote tally officially stood at 26 against the motion and 15 in favour.
The players
David Pocock
David Pocock is an independent Senator for the Australian Capital Territory who introduced the motion to investigate the regulation of paraquat.
APVMA
The Australian Pesticides and Veterinary Medicines Authority is the government body responsible for assessing and registering agricultural chemicals.
Syngenta
Syngenta is a global agribusiness company that develops and manufactures agricultural chemicals including herbicides.
The details
The rejected motion would have required APVMA delegates to provide evidence regarding their final decision, which permits the continued use of paraquat under stricter application limits. While the regulator maintains its stance, manufacturer Syngenta previously announced in March 2026 that it would cease paraquat production at its Huddersfield facility due to generic competition.
Timeline
March 2026: Syngenta announced it would halt paraquat manufacturing.
June 2026: The APVMA announced its final decision on paraquat.
September 2026: Mr Pocock introduced the motion to investigate the chemical.
20 October 2026: The Senate defeated the motion.
Market Landscape
This move reflects the ongoing tension between regulatory approval processes and public safety concerns within the Australian agricultural sector. It highlights how political oversight attempts to intersect with the established Australian Pesticides and Veterinary Medicines Authority regulatory framework.
Farmers and agricultural businesses will continue to face stricter application limits for paraquat, now capped at 231g/ha. This decision maintains the current market availability of the product for users despite calls for a total ban.
The takeaway
The Senate's rejection of this motion reinforces the current regulatory status quo for agricultural chemical usage in Australia. Producers should remain aware of updated application limits to ensure compliance with the latest APVMA safety standards.
Further reading
For more context on the industry, visit Australia Agriculture.
Source note: This article includes information reported by Countryman.
Live Poll
Should the government implement stricter regulations on the use of agricultural herbicides like paraquat?
