Australian Herbicide Resistance Initiative (AHRI)

Australian Herbicide Resistance Initiative

Meet the team

Meet the people behind the science

Learn more here

Blog: AHRI Insight

Bringing you the need-to-know in herbicide resistance with our fortnightly newsletter, AHRI insight.

All AHRI Insights

Research

Encouraging more crop, less weeds sustainably through a wide range of research activities.

Research page

Videos

Sometimes, words just aren’t enough. Check out our range of videos covering HWSC methods, resistance management, keynote presentations and more.

All videos

Podcasts

The AHRI Snapshots podcast focuses on researchers and their stories.

Find out more by subscribing and listening to the podcast below.

Listen to AHRI Snapshots here

2020 Crop Protection Forum

Save the date for Tuesday 8 December, 2020.

Find out more here!

What is AHRI?

Welcome to The Australian Herbicide Resistance Initiative (AHRI) homepage! Before you dig into all our publications and podcasts, you might be wondering who we are and what we do. AHRI was a GRDC initiative which launched in 1998 under the guidance of Professor Stephen Powles. In 2018, we celebrated 20 years of GRDC funding, operating as a research group out of the University of Western Australia. You can get a great overview of what we’re all about by watching the video on the right. You can also learn more in this Outlooks on Pest Management article here.

Blog: AHRI insight

2,4-D antagonises glyphosate, especially in glyphosate resistant weeds

Tue, 3 Nov 2020

Some recent research by a former AHRI researcher Jingbo Li and others shows that glyphosate resistance changes this. They studied two populations of barnyard grass with relatively low-level glyphosate resistance and found that when 2,4-D Amine or Ester was added to the tank with glyphosate, barnyard grass control was greatly reduced. They went on to discover that this is due to an effect on uptake and translocation.