🔥 Trending Paraquat Herbicide: Why is it Being Pulled from Sale in Australia?

Paraquat is a highly effective, non-selective herbicide used globally for weed control, but it is also highly toxic to humans and has been linked to Parkinson's disease ¹⁹. Despite being banned in over 70 countries, including the UK, EU, and China, its use has remained legal in Australia ¹³⁶.

However, recent developments in July 2026 indicate a significant shift in its availability and regulation in Australia.

What is Paraquat Herbicide?

Paraquat is a fast-acting, contact herbicide that kills green plant tissue on contact ⁹. It is widely used in agriculture due to its effectiveness and relatively low cost ⁸. Its chemical name is paraquat dichloride ¹⁰.

Why the Controversy?

The controversy surrounding paraquat stems primarily from its severe health risks to humans:

• High Toxicity: Paraquat is highly toxic if ingested, inhaled, or absorbed through the skin. There is no specific antidote, and poisoning incidents often lead to severe illness or death ¹⁰.
• Parkinson's Disease Link: Numerous scientific studies and health organizations, including Parkinson's Australia, have highlighted a strong correlation between direct exposure to paraquat and an increased risk of developing Parkinson's disease ¹³⁷. This link has been a major driving force behind calls for its ban worldwide ¹⁷.

Paraquat's Status in Australia: A Shifting Landscape

Historically, Australia has allowed the use of paraquat despite international bans. However, recent regulatory and commercial pressures have led to significant changes in 2026:

Regulatory Restrictions by APVMA

In June 2026, the Australian Pesticides and Veterinary Medicines Authority (APVMA), Australia's chemical regulator, imposed new restrictions on the use of paraquat ⁴⁶. While the APVMA did not implement an outright ban, it significantly limited its application ⁶:

• Reduced Application Rates: The new regulations slash the permissible application rates of paraquat ⁶.
• Ban on Backpack Sprayers: The use of backpack sprayers for applying paraquat has been banned ⁶. This measure aims to reduce direct human exposure, which is often associated with such application methods.

These restrictions were a response to ongoing concerns about the herbicide's link to Parkinson's disease, despite the regulator's decision not to ban it entirely ⁴⁵. Parkinson's Australia has been a vocal advocate for a complete ban, citing growing scientific evidence ⁷.

Syngenta's Withdrawal from the Australian Market

In a major development in July 2026, Syngenta, a Swiss company and one of the primary producers of paraquat for decades, announced it would cease sales of the herbicide in Australia and New Zealand ¹².

• Reasons for Withdrawal: Syngenta cited a combination of factors for its decision, including the new regulatory restrictions imposed by the APVMA, as well as commercial, manufacturing, and logistical challenges ².
• Impact: This means that Syngenta's brand of paraquat will no longer be available in Australia ¹⁵. However, it's important to note that generic versions of paraquat, produced by other manufacturers, may still be available in the Australian market ⁵.

Broader Context: Global Trends

The situation in Australia reflects a growing global trend towards restricting or banning paraquat. For instance, in July 2026, India's Centre also proposed a ban on paraquat dichloride herbicide, citing adverse impacts on human health, a history of poisoning incidents, and the absence of an antidote ¹⁰.

In summary, while Australia has not implemented a full ban on paraquat as of July 2026, the combination of stricter regulations by the APVMA and the withdrawal of a major producer like Syngenta marks a significant shift, severely limiting its availability and use in the country ²⁶.