Herbicide mode of action (MoA) classifications have been updated internationally to capture new active constituents and ensure the MoA classification system is globally relevant.

The global MoA classification system is based on numerical codes which provides infinite capacity to accommodate new herbicide MoA coming to market, unlike the alphabetical codes currently used in Australia.

Resellers will mostly likely have started seeing herbicide labels with the new mode of action classification system already. There will be a transition period during which herbicide labels will exist in the supply chain, some bearing the legacy alphabetical MoA classifications, and others transitioned to the global numerical system.

Agsafe advises that the numerical classification system should be fully implemented by the end of 2024.

A mobile app compatible with Android and Apple systems is available via the HRAC website (hracglobal.com) at no cost to users. It will cross reference the herbicide active ingredient with its former MoA letter and new MoA number.

CropLife Australia has produced new resources to enable cross referencing of the changes, including handy posters, stickers, FAQ fact sheet and new MoA classifications pocket card.

Visit the CropLife Australia website to download the following:

- Herbicide MoA classifications poster

- Herbicide MoA classifications sticker

- Herbicide MoA classifications pocket card

- FAQs sheet.