APVMA cancels all products containing chlorthal dimethyl

The Australian Pesticides and Veterinary Medicines Authority (APVMA) has cancelled the registration and use of all products containing chlorthal dimethyl, also known as dacthal or DCPA. Chlorthal dimethyl is a herbicide used in vegetable crops, turf and cotton.

This is an immediate cancellation of the 12 products in Australia containing chlorthal dimethyl, no phase out period applies. Farmers and retailers may continue to the hold products until further notice but must not use it. The use of chlorthal dimethyl as an agricultural chemical product is now illegal.

The APVMA’s assessment found there is an immediate risk to human health due to direct exposure:

• during mixing
• loading and applying the chemical
• from residue remaining on treated crops and turf for up to 5 days following application.

The primary risk is to unborn babies via maternal exposure. Effects may include low birth weight, impaired brain development, decreased IQ, and impaired motor skills later in life. Pregnant workers who may have concerns about exposure are advised to consult with their physician.

Information on the product recall process will be issued shortly.

The products cancelled are:

Details are published in the Special Gazette, Thursday 10 October 2024.

Enquiries about this decision can be directed to enquiries@apvma.gov.au

Media enquiries must be directed to media@apvma.gov.au

Media release

A media release is also available about the cancellation of products containing chlorthal dimethyl.