AHRI Snapshots

Our extension officer Kirrily Condon recently wrote an AHRI insight entitled “Thermal weed control – just hot air, or site-specific reality?” (read it here: https://ahri.uwa.edu.au/thermal-weed-control-just-hot-air-or-site-specific-reality/)which looked at work by a team from the University of Sydney. Guy Coleman and his colleagues reviewed 170 papers, which demonstrated that mechanical weed contr...

Today on AHRI Snapshots, we're chatting with AHRI Director Hugh Beckie about the recent AHRI review paper "Herbicide Resistance Management: Recent Developments and Trends". This paper covers recent developments and trends in herbicide-resistant weed management in agronomic field crops. This paper was written by AHRI’s Director Hugh Beckie, Dr Mike Ashworth and Dr Ken Flower and has...

On this week's podcast, we’re chatting with Darling Downs-based consultant from PulseAg Consulting, Kerry McKenzie. He has done work on pulse crop agronomy and the implications for weed competition and he’s going to give us an overview of the results out of the Darling Downs and Emerald trials. Kerry's previous agronomy work has helped inform researchers from the University of Queensland...

In this edition of AHRI Snapshots, we're chatting with AHRI's Dr Roberto Busi about his GRDC-funded Focus Farms Project which recently wrapped up in March this year. The project was based in the Kwinana Port Zone in Western Australia. Its primary aim was to demonstrate the value of growers testing for herbicide resistance. Roberto gives a great overview of, how the project came about; wh...

AHRI PhD student, Jinyi Chen, studied the inheritance of trifluralin resistance with target site resistance in ryegrass. She found that resistance is single gene recessively inherited. This means that both parents must have a copy of the resistance gene for the progeny to be resistant. Recessive resistance inheritance is rare in the world of herbicide resistant weeds. Nearly all other cases of tar...

AHRI's Agronomy Lead, Mike Ashworth, provides an update on the trial work the agronomy team has been doing. We find out a bit more details about some of the preliminary results from trials conducted in 2018 and we also get a snapshot of what they're looking at this year. Take a listen! You can follow AHRI on Twitter here . To learn more about AHRI's research and team, check out the...

Researchers Gulshan Mahajan, Amar Matloob, Barbara George-Jaeggli, Michael Walsh and Bhagirath 'Sunny' Chauhan have studied this same phenomenon in an emerging weed in the northern grains region – African turnipweed. In this podcast we chat with Sunny Chauhan to learn more. Working with two biotypes of African turnipweed – one from the higher rainfall environment of Dalby, Queensland and...

AHRI's Dr Danica Goggin has found in her recent research that resistance in wild radish to 2,4-D is in fact not metabolic resistance.  Take a listen to this podcast to learn more about how she figured this out and what it means. You can then head on over and read AHRI insight on this research, which hopefully will make much more sense after Danica's explanation! Here's the link: htt...

Rainfall is obviously a key driver in leaching herbicides from stubble before they dissipate, but as we all know rain can be unpredictable. Fortunately, research has shown that some pre-emergent herbicides require far less rainfall to move off stubble and into the soil where they can control germinating weeds. So, what happens when there’s no rainfall? Research has also shown that some herbicides...

Some new research by AHRI PhD student, Huan Lu, has shed some light on Atrazine resistant wild radish and the results have some very practical applications for growers and agronomists. The most common target site mutation that causes Atrazine resistance in wild radish is the 264 mutation, the same mutation that gave us TT Canola. They have very high resistance to Atrazine and as it turns out they...

AHRI was a GRDC initiative which started back in 1998 under the guidance and direction of Professor Stephen Powles. This coming Sunday the AHRI Team will be hosting a dinner with AHRI stakeholders to celebrate AHRI's 20 year milestone. Many significant discoveries and practice changes have come about through AHRI being in existence. AHRI Centre Manager Lisa Mayer provides an overview of some...

It’s been a big year for AHRI. Former AHRI Director, Stephen Powles retired from the position earlier in the year, with Professor Hugh Beckie from Canada taking on the role. We also saw the opening of the GRDC-funded Agronomy Laboratory at the University of Western Australia. Research is at the core of what we do though and we didn’t do that in halves this year either! Not only did AHRI produce si...

Today on AHRI Snapshots, we’re speaking with Development Officer Glen Riethmuller, from the Department of Primary Industries and Regional Development Western Australia, about spray swathing and desiccating canola for ryegrass seed set control. You can follow AHRI on Twitter here . To learn more about AHRI's research and team, check out the website here . 

In this edition of AHRI Snapshots, we’re speaking with Director of Weed Research at the Plant Breeding Institute, University of Sydney, Michael Walsh about a recent research paper on crop competition and its influence on harvest weed seed control on ryegrass. We know crop competition is great at suppressing weeds, but what we have learned from this research is that crop competition makes other wee...

The AHRI research paper: Glyphosate resistance in Tridax procumbens via a novel EPSPS Thr-102-Ser substitution", by Li et al, was published in the Journal of Agricultural and Food Chemistry 2018.This paper is a collaborative effort with researchers coming from China to AHRI and with modelling from Alex Nyporko from Kiev, Ukraine. Lead author Dr Jingbo Li from Hunan University and second autho...

Jinyi Chen is an AHRI PhD Candidate studying trifluralin resistance mechanisms in annual ryegrass. Annual ryegrass is a very serious crop weed in Australia causing significant yield loss. The pre-emergence herbicide trifluralin has been used since the 1970s in Australia to control ryegrassThe first trifluralin resistant annual ryegrass plant was reported in 1995. Recently, increasing trifluralin r...

In this podcast, we’re getting an insight into the 21st Australasian Weeds Conference, which this year was held in Manly. The AWC is a biennial conference and carries on a long tradition of bringing the weed management community together to discuss new developments and share information about cutting-edge and best weed management practices. AHRI Communications Lead, Jessica Strauss, was lucky enou...

In this podcast we catch up with AHRI Research Officer Roberto Lujan Rocha. This is the first time Roberto has been on the podcast. We learn about what the AHRI agronomy team, led by Mike Ashworth, is up to with their research trials and get a better understanding of how the new GRDC Agronomy Lab is operating since its June opening. You can follow AHRI on Twitter here . To learn more about AHRI&ap...

Chaff lining has been increasing in popularity in the Harvest Weed Seed Control (HWSC) scene over the past two seasons. A survey of WeedSmart subscribers showed the percentage of growers using chaff lining increased from 6% in 2016 to 26% in 2017.Despite this rapid uptake of chaff lining, there really was no data available specific to its efficacy! However, there's now compelling research dat...

AHRI Director Hugh Beckie recently moved over from Saskatoon, Saskatchewan, Canada, to take on the position of AHRI Director. In this podcast we get to learn more about Hugh's professional life and some of his interests outside of work too. Hugh also shares with us his vision for AHRI in its new chapter. Hugh is an international expert on herbicide resistance in plants, with a focus on manage...

Barley Grass RIM came about through the GRDC-funded ‘Maintaining profitable farming systems with retained stubble’ initiative that included an objective of promoting pro-active weed management strategies. Brome grass has become a critical ‘driver’ weed in several grain growing districts under no-till systems and in some areas such as Upper Eyre Peninsula barley grass is having a big influence on t...

While 2,4-D is an old herbicide, there's actually a huge knowledge gap that researchers like AHRI’s Dr Danica Goggin are trying hard to fill in a bid to find ways to overcome resistance to this herbicide group in weeds like wild radish. In her research, Danica identified a very plausible resistance mechanism in two wild radish populations. She then went on to test the translocation theory in...

Professor Stephen Powles hung up his hat as AHRI Director last week. In this interview, AHRI Comms Lead Jessica Strauss asks Steve about his time at AHRI and what the future holds for the research group. Take a listen! You can follow AHRI on Twitter here . To learn more about AHRI's research and team, check out the website here . 

In this podcast, we're celebrating the 100th edition of AHRI insight! Music: bensound.com You can follow AHRI on Twitter here . To learn more about AHRI's research and team, check out the website here . 

There are few herbicide options for sowthistle control in chickpea crops, making the perfect recipe for a good ol’ sowthistle blowout. Despite all of this, the latest research by Michael Widderick, Adam McKiernan and Greg Harvey from QDAF with GRDC investment is finding that chickpeas can win the competition against sowthistle if they stack their deck. Growing a chickpea crop at narrow row spacing...