S11E9 Beyond Resistance – De-mystifying MRLs with Gordon Cumming & Paul McIntosh
July 4, 2026
Author
*This episode of Beyond Resistance was recorded on 11 June, 2026, before the APVMA announced new restrictions for the use of paraquat and diquat products.*
In this episode of Beyond Resistance, we’re joined by our own Northern Extension Agronomist, Paul McIntosh, and GRDC’s Manager of Chemical Regulations, Gordon Cumming.
Australia has one of the most trusted chemical regulatory frameworks in the world and in this podcast, we aim to de-mystify how the maximum residue limit (MRL) system underpins our access to global markets.
Gordon and Paul discuss how growers can stay on the right side of the regulations, and the unfortunate reality of what happens if an Aussie shipment doesn’t comply with overseas restrictions.
Ultimately, it all comes down to communication; read the herbicide labels, talk with your marketer before putting a crop in, and use all of the Big 6 strategies! We can all play a part in preserving Australia’s hard-won reputation as a supplier of safe and high-quality food, while also protecting the efficacy of our available herbicides.