Shows
AHRI SnapshotsDeep learning can tell the difference between white and blue lupinsBlue lupins are notorious for being difficult to control and plants produce prolific seed banks. Blue lupins are closely related to the domesticated narrow-leaf lupin, also known as the white lupin, so whichever herbicide is survived by white lupins is also survived by blue lupins. This is problematic as they look alike. This is where a team of researchers from AHRI and the Centre for Applied Bioinformatics at the University of Western Australia, led by UWA PhD candidate and Forrest Research Scholar, Monica Danilevicz comes in.The team has recently taken the approach of...
2023-07-1115 minAHRI SnapshotsTesting water quality for effective spray applicationIn this interview we chat with AHRI Research Officer Roberto Lujan Rocha about the survey work he has conducted on the quality of water sourced on farm for spray application. This project is a collaboration between University of Western Australia, AHRI and the Centre for Water & Spatial Science. The team looked at water from bores, dams, desalinated water, rainwater tanks and scheme water. Roberto surveyed water sources in the mid to south West Australian wheatbelt in September 2022 and has recently completed surveys of water sources in the Merredin area of Western Australia. ...
2023-06-1214 minAHRI SnapshotsCinmethylin couldn't be broken, but diversity is key to keeping it that wayOn this episode of AHRI Snapshots, we’re catching up with former AHRI master’s student Geide Figueiredo (also known as JD) who worked alongside AHRI researcher Roberto Busi to try and break the herbicide cinmethylin, commercially known as Luximax. Fortunately, they weren't able to break it, which is great news for farmers and agronomists because it means that this herbicide is still working and resistance hasn’t developed. However, it’s always important to remember there’s no guarantee that resistance won’t develop, and the best way to prevent that is by using diverse weed c...
2023-04-1109 minAHRI SnapshotsDr Aimone Porri talks on AHRI collaboration and his recent work on PPO mutationsIn this interview, AHRI's Jessica Strauss chats with Dr Aimone Porri, who is the Laboratory Head for Herbicide Target and Weed Resistance Research at BASF, based in Germany. Aimone's work spans across several fields in the weeds resistance research space, including working as a Geneticist, Molecular Biologist, and Plant Biologist. At the time of this chat, he was in Australia visiting AHRI. Aimone has collaborated with AHRI for several years. We talk about some of the significant work he has done, including , working on pyroxasulfone resistance in ryegrass, as well as work on cinmethylin and multiple herbicide r...
2023-03-1414 minAHRI SnapshotsThe benefits of 3D mapping soil moistureIn our first episode back for AHRI Snapshots this year, we chat with Dr Hira Shaukat, who previously was an AHRI PhD candidate. Hira worked on 3D mapping of soil moisture throughout her PhD. Part of her work involved looking at how farmers could utilise degraded land affected by salinity. This involved figuring out what soil conditions would be suit the plant Leptospermum nitens. Nectar from this plant is a source of high-value medicinal honey production and can provide income from agriculturally marginal lands. This is a deviation a bit away from the themes of w...
2023-02-1414 minAHRI SnapshotsIncoming Director Ken Flower shares his vision for AHRIOn AHRI Snapshots this month, we have an exciting episode, as we catch up with AHRI’s incoming Director, Associate Professor Ken Flower. Ken would be familiar to listeners as he’s been involved in AHRI projects for several years, contributing his substantial knowledge in no-till and agronomy to the AHRI Agronomy team.He has a broad farming systems skillset, including in conservation farming and no-till systems, agronomy and cropping systems, precision agriculture, and weed control. Ken’s vision for AHRI is to develop cropping systems with reduced dependence on herbicides for weed control...
2022-11-2213 minAHRI SnapshotsDon't stop thinkin' bout tomorrow when it comes to weeds, disease and insect controlDon't stop thinking about tomorrow is the theme of the upcoming Crop Protection Forum in Wagga Wagga next month.In this AHRI Snapshots, we catch up with event organiser, Dr Lizzy Lowe, who is the Senior Extension Scientist for Cesar Australia. This event is held annually, with this year’s partners being The Centre of Crop Disease Management (CCDM), the Australian Herbicide Resistance Initiative (AHRI), and The University of Melbourne with support from the GRDC.Attendees will hear from Australia’s leading experts on insecticide, fungicide, and herbicide resistance at the upcoming Forum, which...
2022-10-2506 min
AHRI SnapshotsWhy highly glyphosate resistant plants can’t competeIn this AHRI Snapshots we catch up with Dr Martin Vila-Aiub, who was co-author on a recent publication that our latest AHRI insight covers. It’s all about how highly glyphosate resistant plants can’t compete.AHRI researchers recently teamed up with Martin, who is based in Argentina and other researchers from Brazil to investigate the combination of crop competition and glyphosate on glyphosate-resistant goosegrass. Competition alone from Soybeans reduced the growth of plants with the TIPS mutation by 95%, and the addition of glyphosate actually made these plants grow a little better!You can a...
2022-10-0312 min
AHRI SnapshotsVelocity® resistant wild radish confirmedAHRI’s Dr Roberto Busi talks about his finding of velocity resistant wild radish in this podcast. It’s not great news for growers – but knowledge is power. At the end of 2019, Roberto Busi started a new herbicide resistance testing service based at UWA. Growers and agronomists sent in about 500 samples of ryegrass for testing as well as 121 samples of wild radish. Two of these wild radish populations, sampled by agronomists, had survivors to Velocity® and Roberto embarked on extensive glasshouse and field testing.Resistance testing and using diverse tactics, as found in the WeedS...
2022-08-2916 min
AHRI SnapshotsAHRI Director Hugh Beckie reflects on achievements ahead of retirementOn this edition of AHRI Snapshots, we catch up with Professor Hugh Beckie, for the final time! Hugh is retiring from the role of AHRI Director at the end of this month. Hugh has has worked in the field of herbicide resistance for more than 30 years and has been leading AHRI research as Director since 2018 after moving to Australia from his home country of Canada.In this episode, we look back on what Hugh is most proud of during his time as AHRI Director. You can follow AHRI on Twitter here. To learn mor...
2022-06-1011 min
AHRI SnapshotsReduced cinmethylin sensitivity identified in annual ryegrass in labIn this episode of AHRI Snapshots, we’re catching up with AHRI’s Dr Danica Goggin about her latest paper which looks at cinmethylin metabolism in annual ryegrass. Cinmethylin is a relatively new pre-emergent herbicide to Australian cereal cropping farming systems. While there hasn’t been any confirmed resistance of annual ryegrass to cinmethylin, there has been some populations which have had reduced sensitivity to it. Danica joins us to explain what the paper authors found the cause to be of this reduced sensitivity and what this means for its use in the field. You...
2022-05-1005 min
AHRI SnapshotsWhat is the relationship between developing herbicide resistance, seed size and seed dormancy?In this interview, we catch up with AHRI Senior Agronomy Researcher, Roberto Lujan Rocha to talk about his latest publication he worked on with Aniruddha Maity, who briefly worked at AHRI just before the pandemic. This study, entitled Concurrent evolution of seed dormancy and herbicide resistance in field populations of dominant weed species in Western Australian cropping systems, evaluates the interaction among developing herbicide resistance, seed size and seed dormancy in three weed species in Western Australia. You can follow Aniruddha Maity and Roberto Lujan Rocha on...
2022-04-1209 min
AHRI SnapshotsDr Qin Yu's team discovers naturally evolving point mutation which confers resistance to Glufosinate in goosegrassGlufosinate is an important and widely used non-selective herbicide active on a wide range of plant species. Resistance evolution to glufosinate in weedy plant species, including the global weed Eleusine indica, commonly known as goosegrass, is underway. At AHRI, Principal Research Fellow, Qin Yu and her team established the molecular basis of target-site glufosinate resistance in goosegrass. In this first AHRI Snapshots podcast for 2022, Qin Yu joins us to explain the results in the paper: A naturally evolved mutation (Ser-59-Gly) in glutamine synthetase confers glufosinate resistance in plants. This work revea...
2022-02-1609 min
AHRI SnapshotsAHRI Director Hugh Beckie reflects on 2021This is the last AHRI Snapshots for 2021! What a year it has been. In this episode we’re catching up with AHRI Director, Hugh Beckie to go over the highlights from AHRI this year.We’ll also get an update on what the plans are for AHRI in 2022. This is now our 6th season of the podcast. Thank you for listening this year and we look forward to bringing you more AHRI Snapshots in 2022!Top AHRI insightsMixtures rock! Next level resistance testing tells a big storyWe’ve cracked the P450 co...
2021-12-0115 min
AHRI SnapshotsAHRI's getting a new website!We've got exciting news! AHRI is getting a new website next week!AHRI Communications Officer, Jessica Scholle joins me on the podcast today to chat about this new development and we also give a broader communications update on AHRI.You might've noticed we've been getting to know our AHRI researchers better through videos. We talk about the strategy behind this.We also keep you in the loop with developments on our online courses through Diversity Era.To ensure you're seeing the latest from AHRI, make sure you're following us on Twitter...
2021-11-1708 min
AHRI SnapshotsWhat's happening at the Crop Protection Forum next week?The Crop Protection Forum is next week in Launceston, Tasmania!In its 7th year, the AHRI, CCDM and Cesar Australia Crop Protection Forum will showcase the latest weeds, pests and disease research for riding out the inevitable storm of chemical resistance.Our experts will explore the implications and solutions for reducing resistance in Tasmanian cropping systems.In this podcast episode, Mark Gibberd from CCDM, Hugh Beckie from AHRI and Joshua Thia from University of Melbourne, representing Cesar Australia, provide a snapshot of what to expect at the forum. Tickets are still...
2021-10-2016 min
AHRI SnapshotsHow phase farming can reduce an annual ryegrass seedbankIn this podcast, we catch up with AHRI Agronomy Researcher Dr Yaseen Khalil about some of the key findings from two of his recent studies. We learn about the effectiveness of different weed control tacts in serradella, which is a legume pasture species. We also learn about how pasture phase farming can be used to reduce the annual ryegrass seed bank in a serradella crop.Yaseen’s project is funded by the Grains Research and Development Corporation, which invests $1.5 million in AHRI each year to ensure Australian grain growers have access to world class...
2021-10-0612 min
AHRI SnapshotsRapid on-farm testing of ryegrass to pre and post-em herbicides explainedOn today’s AHRI Snapshots, we’re catching up with previous AHRI Masters student Martina Badano.Martina worked with Dr Roberto Busi back in 2019 on rapid on-farm testing.Her paper “Rapid On-Farm Testing of Resistance in Lolium rigidum to Key Pre- and Post-Emergence Herbicides” has just been published. We’re going to find out more about it.Here's some more detail on the paperOverreliance on herbicides for weed control is conducive to the evolution of herbicide resistance.Lolium rigidum (annual ryegrass) is a species that is prone to e...
2021-09-2207 min
AHRI SnapshotsAHRI on show at WeedSmart Week & research updateIn this episode we catch up with AHRI Director Hugh Beckie who recently presented at WeedSmart Week in Esperance. Hugh provides a snapshot into some of the practical research outcomes he was able to share with growers in Esperance in regards to recent results out of the AHRI agronomy team.We also hear from Hugh about how Roberto Busi's resistance testing is going, what is happening in the 2,4-D space with Dr Danica Goggin and how the molecular team, lead by Dr Qin Yu is going.We mentioned a few links in the...
2021-08-2511 min
AHRI SnapshotsNew recruit, Dr Candy Taylor, explains how she'll be tackling auxinic herbicide resistance researchOn today’s AHRI Snapshots, we’re catching up with our newest AHRI team member, Dr Candy Taylor!Candy has recently joined the team as a Research Associate. She’s going to be looking at understanding auxinic herbicide resistance dynamics. This work is being supported by an ARC Linkage grant, with additional investment from Nufarm. This was successfully secured by AHRI’s Dr Danica Goggin and former AHRI Director Professor Stephen Powles.So, for a little bit of background on Candy, she obtained her PhD in 2019 in the area of plant genetics and pre-breed...
2021-07-2810 min
AHRI SnapshotsDr Yaseen Khalil provides an update on his pasture rotations project, highlighting key findingsIn this episode of AHRI Snapshots, we’re catching up with AHRI Agronomy Research Associate Dr Yaseen Khalil.Yaseen has been working on pasture rotations, with his project finishing up in December this year. Today, we’re going to get an update on where the project is at so far and find out some of the key results.Yaseen’s project is funded by the Grains Research and Development Corporation, which invests $1.5 million in AHRI each year to ensure Australian grain growers have access to world class research in strategies to mitigate weeds and control herbicide resistance.Rotation explainerActivity 3: Short...
2021-06-1616 min
AHRI SnapshotsNew research suggests sowing earlier or later depends on herbicide product usedThis week on AHRI Snapshots, we caught up with AHRI Agronomy Lead, Dr Mike Ashworth. Mike has been leading projects on mitigating herbicide resistance, looking at serradella as a break phase crop and blue lupin control in narrow leaf lupins.While some of these projects are still in progress, Mike is able to share with us some preliminary results, including new information on time of sowing recommendations.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2021-05-1912 min
AHRI SnapshotsAHRI researchers discover that 2,4-D synergises metribuzinIn this episode, we’re catching up with AHRI’s Dr Heping Han to talk about some recent research he published on 2,4-D syngergising metribuzin. Australian farmers and agronomists have previously observed synergy between phenoxy herbicides, such as 2,4-D and PSII herbicides, also known as Group C or Group 3 herbicides such, as metribuzin. Thanks to this new AHRI research, we now know why this is the case. Dr Heping Han joins us to explain this research and what it means for farming systems.The Grains Research and Development Corporation (GRDC) invests $1.5 million in AHRI each year to ensure Australian grai...
2021-05-0508 min
AHRI SnapshotsAssessing the capability and potential of LiDAR for weed detectionOn this episode of AHRI Snapshots, we’re catching up with AHRI PhD Candidate, Nooshin Shahbazi.In her latest paper, Nooshin has looked at the capability of Light Detection and Ranging (LiDAR) sensors to detect and locate weeds. The results showed the detectability of the target at different scanning distances from the LiDAR was directly influenced by the size of the target and its orientation toward the LiDAR. You can read her paper here: https://ahri.uwa.edu.au/publications/assessing-the-capability-and-potential-of-lidar-for-weed-detection/The Grains Research and Development Corporation (GRDC) invests $1.5 million in AHRI each year to ensure Australian grain growers ha...
2021-04-2110 min
AHRI SnapshotsGlyphosate resistance mechanism with similarities to cancer drug resistance in humans identifiedIn this special edition of AHRI Snapshots, we’re talking about some ground-breaking research out of AHRI which has this week been published in the prestigious journal Proceedings of the National Academy of Science of the USA. So, what is the big news? AHRI researchers have identified a new glyphosate resistance mechanism which has similarities to cancer drug resistance in humans.AHRI researchers who worked on this paper include former AHRI PhD scholar Lang Pan (pictured) who is now a Professor at Hunan Agricultural University, China, AHRI Principal Research Fellow Qin Yu and former AHRI Director, Professor Stephen Powles. Fo...
2021-04-1211 min
AHRI SnapshotsThe adaptive value of flowering time in wild radish with Ci SunOn this episode of AHRI Snapshots, we caught up with AHRI Masters Graduate Ci Sun. She published her first paper as first author recently on the adaptive value of flowering timing in wild radish. The paper has some important key takeaway messages which we get into in this interview.You can read Ci's paper here: https://ahri.uwa.edu.au/publications/the-adaptive-value-of-flowering-time-in-wild-radish-raphanus-raphanistrum/We also mentioned the WeedSmart Big 6 to look at diverse tactics for weed control. You can check out the Big 6 here: https://www.weedsmart.org.au/big-6/Presenter & producer: AHRI Communications Lead Jessica StraussYou...
2021-03-2408 min
AHRI SnapshotsAHRI research update & the weed assessment calculatorWe’re well into 2021 and the team at AHRI has been really busy with research and extension. AHRI Director Hugh Beckie joins us on the podcast to provide us with an update on research outcomes out of AHRI, as well as an overview of his new paper on an agricultural weed assessment calculator which can be used in Australia. NEW RESEARCH OUT OF AHRIWorld first: glyphosate resistant capeweed: https://ahri.uwa.edu.au/world-first-glyphosate-resistant-capeweed/Agricultural Weed Assessment Calculator: An Australian Evaluation: https://ahri.uwa.edu.au/publications/agricultural-weed-assessment-calculator-an-australian-evaluation/Cytochrome P450 CYP81A10v7 in Lolium rigidum confers metabolic resistance to...
2021-03-1010 min
AHRI SnapshotsGlyphosate resistance in capeweed a world-first finding for AHRIIn this edition of AHRI Snapshots, we’re chatting with AHRI Agronomy Team researcher, Dr Yaseen Khalil about his latest paper which identified the world’s first glyphosate resistant capeweed. You can read AHRI insight on this topic here: https://ahri.uwa.edu.au/world-first-glyphosate-resistant-capeweed/And you can read the paper in full here: https://ahri.uwa.edu.au/publications/identification-of-the-first-glyphosate-resistant-capeweed-arctotheca-calendula-population/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2021-02-2408 min
AHRI SnapshotsPatience and persistence leads to P450 code being crackedA group of researchers led by Heping Han from AHRI, including researchers from Bayer and Zhejiang University in China have identified the P450 gene responsible for cross resistance to herbicides of at least five modes of action. The gene is CYP81A10v7. Paper author, Prof Steve Powles joins us in this AHRI Snapshots to provide a history of this research and what the finding means in both a fundamental and practical sense. AHRI recently published a paper on this and last week Peter Newman wrote an AHRI insight on it. You can read the insight here: https://ahri...
2021-02-1010 min
AHRI SnapshotsDifferentiating between weeds and crop at harvest time based on plant height differencesThis is our last AHRI Snapshots podcast for 2020! On our final episode, AHRI PhD Candidate Nooshin Shahbazi joins us to talk about her latest paper "Comparison of crop and weed height, for potential differentiation of weed patches at harvest". She has been looking at differentiating between weeds and the crop at harvest time based on the plants height differences, with the aim of identifying weed species that persist in the field until harvest and grow taller than the crop plants, so that these weed species could be mapped at the next stage of the project and treated.With the...
2020-12-0906 min
AHRI SnapshotsAre herbicide mixtures unaffected by resistance?Today on AHRI Snapshots we catch up with AHRI’s Dr Roberto Busi. He recently published a paper alongside AHRI's Prof Hugh Beckie which entitled: Are herbicide mixtures unaffected by resistance? A case study with Lolium rigidum. He joins us to tell us what he found.Paper:https://ahri.uwa.edu.au/publications/are-herbicide-mixtures-unaffected-by-resistance-a-case-study-with-lolium-rigidum/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-11-2510 min
AHRI SnapshotsUS researcher Assoc Prof Todd Gaines shares exciting finding on 2,4-D resistanceIn this edition of AHRI Snapshots, we catch up with Colorado State University weeds researcher, Associate Professor Todd Gaines. Todd has previously worked out of AHRI and we thought it would be good to catch up with him to see what he’s focusing on at the moment. Todd recently had a paper feature in the Special Edition of Herbicide Resistance in Plants, edited by AHRI's Prof Hugh Beckie, entitled “Omics Potential in Herbicide-Resistant Weed Management”. We find out about that and Todd also shares an exciting finding on 2,4-D resistance which will be published in an upcoming paper.Y...
2020-11-1113 min
AHRI SnapshotsAn insight into what to expect at the 2020 Crop Protection ForumThis year, AHRI is hosting the 2020 Crop Protection Forum on Tuesday December 8th. This event is a collaboration between AHRI, CCDM and cesar and is designed to deliver the latest research to agronomists and industry in a one-day event. This event was first held in Perth in 2015 when it was hosted by AHRI. The event has since been delivered in Wagga, Dalby, Adelaide, and Moama in Victoria and has proved to be a valuable forum for agronomists to engage with crop protection researchers and discuss the regional issues arising and how to tackle these problems.Today on AHRI Snapshots...
2020-10-2815 min
AHRI SnapshotsAHRI agronomy update with Research Officer Roberto Lujan RochaIn this week's podcast, we catch up with AHRI Research Officer, Roberto Lujan Rocha who gives an update on where the agronomy team is at with a range of their projects. We talk about how the team is looking at whether certain weeds like ryegrass and wild radish evolve to evade harvest weed seed control tactics and also cover work the team is doing in pre-emergent herbicides. In the podcast, Roberto mentions a range of resources that discuss the work of the agronomy team. ‘Intelligent’ weeds evolve to evade controls: https://grdc.com.au/news-and-media/news-and-media-releases/national/2020/may/intelligent-weeds-evolve-to-evade-controlsFighting weed...
2020-10-1405 min
AHRI SnapshotsFitness of herbicide resistant weeds: what we know and the implications for managementIn this episode of AHRI Snapshots, we catch up with Professor Martin Vila-Aiub to find out about his recent paper "Fitness of Herbicide-Resistant Weeds: Current Knowledge and Implications for Management" which was recently published in a special edition of Herbicide Resistance in Plants (you can read that here: https://ahri.uwa.edu.au/publications/herbicide-resistance-in-plants-2/).Martin also tells us about how he's been utilising his time in Argentina during the pandemic (he's been doing lots of writing!).You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-09-3017 min
AHRI SnapshotsHas crop seed cleaning improved in the last 10 years?On this edition of AHRI Snapshots, we’re catching up with AHRI’s Dr Mechelle Owen about her latest paper “Lessons learnt: crop-seed cleaning reduces weed-seed contamination in Western Australian grain samples” and also find out what’s in the pipeline for her upcoming survey work in Western Australia.If you're a grower in WA and would be keen on being involved in Mechelle's survey work, send her an email: mechelle.owen@uwa.edu.au________________________________________________________________Podcast producer & host: Jessica StraussYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the websit...
2020-09-1608 min
AHRI SnapshotsSurprising result: loss of trifluralin metabolic resistance in ryegrass exposed to prosulfocarbToday on AHRI Snapshots we’re catching up with AHRI’s Dr Roberto Busi to find out more about his latest paper on the loss of trifluralin metabolic resistance in ryegrass plants exposed to prosulfocarb recurrent selection.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-09-0211 min
AHRI SnapshotsOn a good thing? Don’t stick to it! – the Director’s Cut - an overview of AHRI 5 and what's to comeWe recently published AHRI insight highlighting the research outcomes out of the AHRI 5 project, which has GRDC investment(you can check it out here: https://ahri.uwa.edu.au/on-a-good-thing-dont-stick-to-it-the-directors-cut/. We’re now entering the next five-year project: AHRI 6, which also has GRDC investment. AHRI Director Professor Hugh Beckie joins us on the AHRI Snapshots podcast today to reflect on the major achievements out of AHRI 5 and give us some insight into what’s on the agenda for the new AHRI project.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, chec...
2020-07-2210 min
AHRI SnapshotsThe complexities of 2,4-D resistance explainedThis week on AHRI Snapshots, we’re chatting with AHRI researcher, Dr Danica Goggin on her latest findings into 2,4-D research. The findings have been published in her paper: "Plasma membrane receptor-like kinases and transporters are associated with 2,4-D resistance in wild radish". This paper was recently published in the Annals of Botany, Volume 125. Peter Newman recently wrote AHRI insight on this paper and has done an explainer video. Pete said it was one of the trickiest papers he’s had to get his head around. You can check out the insight here: https://ahri.uwa.edu.au/24-d-resistance-its-all-about-perception/Dani...
2020-07-0808 min
AHRI SnapshotsFocus paddock project shows WA is having a win with weed controlIn this interview, we’re going to be chatting with DPIRD grain researcher, Martin Harries, about a six-year focus paddock survey he led. The survey collated data from 184 paddocks spanning 14 million hectares of cropping land in Western Australia. It was all made possible with a DPIRD and GRDC investment and the collaboration of 13 farming groups; including the Facey, Liebe, Mingenew-Irwin groups and WANTFA.Martin has recently published the weeds aspect of this research as part of his PhD and reported that we’re having some great success with weed control in Western Australia.You can check out the AHRI insi...
2020-06-2408 min
AHRI SnapshotsNorthern region growers in unique position to incorporate other weed control methodsOn this edition of AHRI Snapshots, we catch up with Agri-Science Queensland research scientist, Dr Adam Jalaludin about the results from a GRDC-funded survey he conducted in the Northern region on problem weeds. He shares the key takeaways from the research, as well as some practical information for growers and agronomists.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-06-1010 min
AHRI SnapshotsHow the weed chipper came about and how it fits into farming systemsOn this AHRI Snapshots we learn all about the weed chipper!We chat with agricultural engineer Dr Andrew Guzzomi from the University of Western Australia’s School of Engineering about the weed chipper. Andrew, together with his colleague Dr Carlo Peressini, engineered the weed chipper’s development as part of a multidisciplinary team.The concept of the Weed Chipper came about when a group of growers were discussing weed control in a fallow field in southern Queensland – this prompted the idea of a rapid response tyne to chip out weeds. The group of agricultural engineers and weeds researchers led by Dr...
2020-05-2712 min
AHRI SnapshotsWhy delaying sowing isn't necessarily the best option for ryegrass controlOn this week’s AHRI Snapshots we chat with Dr Gurjeet Gill. He’s an Associate Professor in Agronomy & Weed Science at the School of Agriculture, Food and Wine at University of Adelaide.Gurjeet, along with his colleague Ben Fleet recently completed some research that says if you don’t get a knockdown in, it’s not a problem. Delaying the sowing of wheat or barley to get a knockdown in some cases lead to a reduced number of grass weeds in crop, but the weeds in the later sown crop often set more seeds than the lower number of weeds...
2020-05-1309 min
AHRI SnapshotsTaking a look at five emerging problem weedsOn this week's podcast, we’re chatting with WA Department of Primary Industries and Regional Development weed researcher Dr Harmohinder Dhammu, who along with colleagues Abul Hashem, Catherine Borger, Glen Riethmuller, Nerys Wilkins and Pete Gray, with GRDC investment, have quantified the impact of five weed species of emerging importance in the WA grains belt. This work was recently written about in AHRI insight by Cindy Benjamin: https://ahri.uwa.edu.au/new-comers-causing-trouble/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-04-2912 min
AHRI SnapshotsCinmethylin controls multiple herbicide resistant ryegrassIn this edition of AHIR Snapshots, AHRI researcher Dr Roberto Busi is helping us to understand new products before they come to market. He recently investigated the product Cinmethylin which is a new BASF product called Luximax. He found that Cinmethylin controls multiple resistant ryegrass, among other helpful things which we’ll get into. Peter Newman covered this work for AHRI insight as well, so we’ll link in the podcast if you’d like to learn more. Check out the details here: https://ahri.uwa.edu.au/luximax-gets-its-own-new-box/You can follow AHRI on Twitter here. To learn...
2020-04-0107 min
AHRI SnapshotsHerbicide mixtures & crop competition - with Facundo CorteseToday we’re catching up with Facundo Cortese who has been working out of AHRI alongside Roberto Busi. He recently spoke at the Perth GRDC Crop Updates on how herbicide mixtures and crop competition provide excellent control of annual ryegrass and mitigate herbicide resistance.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2020-03-1707 min
AHRI SnapshotsWeed and seed biology and ecology researchIn this week's podcast, we catch up with visiting scholar, Aniruddha Maity, also known as Maity.He's working on the seed biology and ecology of brome, wild barley, wild oat and ryegrass and connecting them with their herbicide resistance. Maity is originally from India and is a PhD candidate at Texas A&M University (@TAMU on Twitter). He's come to AHRI with the Endeavour Leadership Program.You can follow Maity on Twitter here: https://twitter.com/Its_MaityYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website...
2020-03-0304 min
AHRI SnapshotsGroup H (HPPD) resistant wild radish explainedThe first resistance to HPPD, also known as Group H, herbicides in wild radish has now been discovered by AHRI researchers led by PhD candidate Huan Lu. Wild radish is just the third weed in the world to evolve resistance to this group of herbicides. In this podcast, we caught up with Huan to learn more about the results published in his paper “Evolution of resistance to HPPD-inhibiting herbicides in a wild radish population via enhanced herbicide metabolism”. You can read the AHRI insight and find the link to the paper here: https://ahri.uwa.edu.au/group-h-hppd-resistant-wild-radish/Yo...
2020-02-1904 min
AHRI SnapshotsWhat would it be like farming without glyphosate?For the first AHRI Snapshots podcast of 2020, we caught up with Associate Professor Ken Flower about a recent paper he co-authored with AHRI Director Hugh Beckie and AHRI’s Agronomy Lead, Mike Ashworth.With glyphosate currently under intense scrutiny worldwide from an environmental and health perspective, the authors of the paper “Farming without glyphosate” contemplated possible scenarios of farming without our most important and popular herbicide.Take a listen to the podcast below to learn more. You can read the paper here:https://ahri.uwa.edu.au/publications/farming-without-glyphosate/You can follow AHRI on Twitter here. To learn...
2020-02-0513 min
AHRI SnapshotsGround cover is king when it comes to pre-emergent herbicide efficacyIn our final AHRI Snapshots podcast for 2019, we caught up with AHRI’s Dr Yaseen Khalil about his papers the “Effect of crop residues on interception and activity of prosulfocarb, pyroxasulfone, and trifluralin” and “Pyroxasulfone efficacy for annual ryegrass control is affected by wheat residue height, amount and orientation”. Cindy Benjamin has also written an AHRI insight on these two papers which you can read here: https://ahri.uwa.edu.au/whats-the-sticking-point-better-pre-em-efficacy-in-stubble-retention-systems/You can follow Yaseen on Twitter here: https://twitter.com/ykhalil2013You can follow AHRI on Twitter here. To learn more about AHRI's research and team, chec...
2019-12-1112 min
AHRI SnapshotsWorld’s first case of metabolism-based glyphosate resistanceToday on AHRI Snapshots, we catch up with Colorado State University Associate Professor, Dr Todd Gaines about metabolism-based glyphosate resistance.Peter Newman recently wrote AHRI insight on this topic. Back in 2011, then Ord River agronomist, Andrew Cripps, was approached by a farmer asking why his Barnyard grass had survived glyphosate.Dr Todd Gaines and Professor Steve Powles visited the northern irrigation region, took samples, and confirmed glyphosate resistance.Recently, further research at AHRI by Chinese researcher Dr Pan Lang, under the direction of AHRI’s Qin Yu, confirmed the world’s first case of metabolism-based glyphosate resistance.Todd shares his...
2019-11-2714 min
AHRI SnapshotsCrop Protection Forum previewCesar is partnering with the Australian Herbicide Resistance Initiative (AHRI) and the Centre for Crop and Disease Management (CCDM) to deliver the 2019 Crop Protection Forum. Attendees will learn about the latest research into insecticide, herbicide and fungicide resistance affecting the grains industry. Take a listen to this podcast with Cesar's Jessica Lye and AHRI's Hugh Beckie to find out more about the forum. To get your tickets, visit the website here: https://www.cpf2019.com/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2019-11-1310 min
AHRI SnapshotsCrop Protection Forum previewCesar is partnering with the Australian Herbicide Resistance Initiative (AHRI) and the Centre for Crop and Disease Management (CCDM) to deliver the 2019 Crop Protection Forum. Attendees will learn about the latest research into insecticide, herbicide and fungicide resistance affecting the grains industry. Take a listen to this podcast with Cesar's Jessica Lye and AHRI's Hugh Beckie to find out more about the forum. To get your tickets, visit the website here: https://www.cpf2019.com/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2019-11-1310 min
AHRI SnapshotsDo plants pay a fitness cost to be resistant to glyphosate?Today we catch up with AHRI’s Dr Qin Yu about the paper “Do plants pay a fitness cost to be resistant to glyphosate?” This paper was published earlier this year and is written by Martin Vila-Aiub, Qin Yu and Steve Powles. This paper reviewed the literature to understand the effects of glyphosate resistance on plant fitness as the molecular, biochemical and physiological levels. Dr Qin Yu explains further.You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2019-10-2906 min
AHRI SnapshotsWhat are canola's super-powers?In this podcast, Cindy Benjamin catches up with Charles Sturt University (CSU) Professor Leslie Weston to get the next instalment on their work. You can read the insight and listen to the podcast on Leslie and her team's earlier work here: https://ahri.uwa.edu.au/crops-are-doin-it-for-themselves/The last podcast focused on cereals, while this one looks at the mechanisms at play in canola.Leslie led a large project at CSU alongside Associate Professor Dr Chris Preston at The University of Adelaide, to investigate several aspects of crop competition.PhD candidate James Mwendwa and the project team conducted field...
2019-10-1614 min
AHRI SnapshotsHarvest Weed Seed Control model explainedFor this AHRI Snapshots podcast, we catch up with AHRI and WeedSmart Western Extensions Agronomist, Peter Newman, who wrote one of our latest AHRI insights on the best harvest weed seed control tool for you. He also developed a model which allows you to input your own data to figure out what options you might consider. You can read the insight here: https://ahri.uwa.edu.au/whats-the-cost-of-hwsc-for-you/And you can download the model here: https://ahri.uwa.edu.au/wp-content/uploads/2019/09/Estimated-Cost-of-HWSC-calculator-Sept19-1.xlsxYou can follow AHRI on Twitter here. To learn more about AHRI's...
2019-10-0209 min
AHRI SnapshotsAHRI's Huan Lu documents metabolic resistance in wild radish for first timeIn this podcast, with chatting with AHRI PhD candidate Huan Lu about his paper “Metribuzin resistance in a wild radish population via both psbA mutation and enhanced metabolism”. The authors of this paper are Huan Lu, Qin Yu, Heping Han, Mechelle J. Owen, and Stephen B. Powles.This paper identifies multiple mechanisms: as well as psbA gene mutation there is a non-target site resistance mechanism of enhanced metabolism. In his current studies, Huan Lu is documenting that this non-target site enhanced metabolism resistance endows resistance to other very different herbicides. This information will become available in Huan’s next public...
2019-09-1805 min
AHRI SnapshotsJohn Broster shares 2019 herbicide resistance survey resultsResearch agronomist John Broster joins us on AHRI Snapshots this week to give an overview of the annual resistance testing report he releases each year through Charles Sturt University. You can find out more about the service here: https://www.csu.edu.au/plantinteractionsgroup/herbicide-resistanceYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2019-09-0407 min
AHRI SnapshotsThe impact of drought on weeds researchQueensland Government Department of Agriculture, Fisheries and Forestry Principal Research Scientist, Michael Widderick recently visited AHRI in Perth. Michael gave a great overview of his projects and we also discussed opportunities to collaborate with AHRI. Michael's team are working on crop competition (among other projects), focusing on sorghum, pulse crops, and manipulation of crop competitiveness to suppress typically summer emerging weeds in winter crops. There are some similarities with the crop competition work our agronomy team are doing. Michael explains some of the barriers to crop competition adoption in the Northern region. We also discuss how the drought in...
2019-08-0612 min
AHRI SnapshotsCertain chemicals in wheat roots found to act as effective bio-herbicides in Aussie soilsOur latest AHRI insight which will be published in the next few days, ‘Crops are doin’ it for themselves’, written by Cindy Benjamin, looks at work around crop competition out of Charles Sturt University. The main project is led by Professor Leslie Weston at CSU and Associate Professor Dr Chris Preston at The University of Adelaide, to investigate several aspects of crop competition. The AHRI Insight delves into just one set of experiments within the broader project, that investigated the ‘impact of crop cultivar on in-crop and post-harvest weed suppression’. Today we’re chatting with Leslie, who will give an overview...
2019-07-2415 min
AHRI SnapshotsIs thermal weed control a site-specific reality?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 control options, like tillage, can use significantly less energy than thermal options, like heat, to kill weeds. Herbicide energy use sits somewhere in the middle. We chat with Guy to find out a bit more.You can follow AHRI on Twitter here. To learn more a...
2019-07-1006 min
AHRI SnapshotsRecent development and trends in herbicide resistance managementToday 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 helped shape the AHRI agronomy program going forward. You can read the paper here: https://ahri.uwa.edu.au/publications/herbicide-resistance-management-recent-developments-and-trends/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the we...
2019-06-2611 min
AHRI SnapshotsImportance of resistance testing galvanised in GRDC-funded 'Focus Farms' ProjectIn 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; what he discovered; and how growers can utilise this information. Find out more here: https://ahri.uwa.edu.au/podcast/importance-of-resistance-testing-galvanised-in-grdc-funded-focus-farms-project/You can follow AHRI on Twitter here. To learn more about AHRI's...
2019-05-2914 min
AHRI SnapshotsIt turns out trifluralin resistance is differentAHRI 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 target site herbicide resistance involve semi-dominance.This could be part of the reason why trifluralin resistance in ryegrass was slower to evolve than other types of herbicide resistance. However, there is always more than one resistance mechanism...
2019-05-1505 min
AHRI SnapshotsPre-lim results on canola crop competitivenessAHRI'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 website here.
2019-05-0107 min
AHRI SnapshotsIt turns out 2,4-D resistance in radish is not metabolic resistanceAHRI'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: https://ahri.uwa.edu.au/24-d-resistance-in-radish-is-not-metabolic-resistance/You can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2019-04-0305 min
AHRI SnapshotsPre-emergent herbicides in stubbleRainfall 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 can remain on stubble for long periods and still be active when rain occurs up to two weeks post-application (two weeks was the longest period tested). This is a pretty valuable attribute for dry sowing – as u...
2019-03-2009 min
AHRI SnapshotsWild radish resistant to Atrazine, very sensitive to BromoxynilSome 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 are super-sensitive to Bromoxynil, requiring only about a third of the Brom rate that it takes to kill susceptible wild radish. Wild radish with the 264 mutation is also resistant to metribuzin.Huan...
2019-03-0605 min
AHRI SnapshotsAHRI celebrates 20 years this coming SundayAHRI 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 of the significant achievements AHRI has had over the last 20 years and also delves into the future direction the research group is heading in.You can follow AHRI on Twitter here. To learn more about AHRI's...
2019-02-2012 min
AHRI SnapshotsResearch highlights in weed science for 2018It’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 significant papers, but other weed science groups nationally also made important discoveries. In this podcast, AHRI Director Hugh Beckie gives an overview of the year that was...
2018-12-0511 min
AHRI SnapshotsSwathing and desiccation as a tool to control ryegrass seed setToday 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.
2018-11-2108 min
AHRI SnapshotsWhat's the relationship between crop competition and harvest weed seed control?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 weed control techniques, such as harvest weed seed control work better. This research was published in the paper “Influence of Crop Competition and Harvest Weed Seed Control on Rigid Ryegrass (Lolium rigidum) Seed Retention Heig...
2018-11-0706 min
AHRI SnapshotsTridax Daisy resistance explainedThe 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 author Dr Qiong Peng were visiting fellows in AHRI supported by the China Scholarship Council.In this research, it was first established that Tridax, a global tropical weed species, evolved glyphosate resistance in the Ord River irrigation...
2018-10-2407 min
AHRI SnapshotsTrifluralin resistance mechanisms - what we know so farJinyi 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 resistant ryegrass populations were reported in Western Australia and South Australia. This was covered in our recent AHRI insight #105 (https://ahri.uwa.edu.au/alphabet-cross-resistance-in-south-australia/).In her research, Jinyi has found that all the four annual ryegrass populations or biotypes tested contained metabolic resistance...
2018-10-1007 min
AHRI SnapshotsAHRI agronomy research update and how the new lab is operatingIn 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's research and team, check out the website here.
2018-09-0711 min
AHRI SnapshotsThe results are in - chaff lining does suppress weed emergenceChaff 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 data coming through for chaff lining and it seems you get really good value for money and it does suppress weed emergence.In brief, this GRDC funded (US00084) research by members of the northern region weeds team, John Broster...
2018-08-2905 min
AHRI SnapshotsIntroducing the new AHRI Director, Prof Hugh Beckie!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 management strategies, tactics, and practises. He is a Fellow of the Weed Science Society of America and Canadian Weed Science Society, and recipient of the QEII Diamond Jubilee Medal.The AHRI Team...
2018-08-1608 min
AHRI SnapshotsComplex mechanisms at play in 2,4-D resistanceWhile 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 another nine 2,4-D resistant populations of wild radish from WA.Danica characterised the resistance profile of the 11 resistant populations to find that resistance to 2,4-D and dicamba appears to be capped.Lo...
2018-07-1207 min
AHRI SnapshotsProfessor Stephen Powles retires as AHRI DirectorProfessor 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.
2018-07-0408 min
AHRI SnapshotsHappy 100th Birthday to AHRI insight!In this podcast, we're celebrating the 100th edition of AHRI insight!Music: bensound.comYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2018-06-1113 min
AHRI SnapshotsModeling the impact of HWSC on herbicide resistance evolutionIn this podcast, Jessica Strauss chats with then AHRI PhD Candidate Gayle Somerville about her paper “Modeling the impact of harvest weed seed control on herbicide resistance evolution”.The modelling in this paper was a component of the PhD research of AHRI PhD student Gayle Somerville, who is now a postdoc at Arhus University in Denmark.Harvest weed seed control (HWSC) is a term that describes a range of techniques to capture and destroy weed seed on standing weed plants infesting crops at the time of grain harvest. HWSC techniques have become adopted by many Australian grain growers, with AHRI...
2018-05-2303 min
AHRI SnapshotsTony Swan discusses findings of new research on diverse rotationsTony Swan is back to discuss his latest research findings! We've previously highlighted in AHRI insight and the podcast, research by Tony Swan and the team from CSIRO that demonstrated double breaks (ie. growing two break crops in sequence) were more effective in reducing annual ryegrass numbers to manageable levels than a single break crop or continuous wheat.The research team took this one step further in a project involving FarmLink in southern NSW from 2014-2017, comparing rotation strategies between disc and tyne seeding systems in a stubble retained system and their impact on ryegrass, yield and profitability.We'll...
2018-04-2413 min
AHRI SnapshotsTrifluralin resistance explained, with Steve PowlesThis podcast looks at trifluralin resistance, with AHRI Director Stephen Powles. The results out of a recent AHRI, entitled Novel Tubulin Mutations Conferring Resistance to Dinitroaniline Herbicides in Lolium rigidum are the primary focus. Steve explains that this study clearly and comprehensively establishes that target site resistance to dinitroaniline herbicides, such as trifluralin, can be endowed by a mutation changing the alpha tubulin gene at amino acid 243, changing Arg to either Met or Lys. He explains how this works, as well as looking at how common trifluralin resistance is; the differences between target site and metabolic resistance, as well a...
2018-04-1118 min
AHRI SnapshotsProfessor Martin Vila-Aiub explains fitness penalties and farming in ArgentinaIn this podcast, we chat with Professor Martin Vila-Aiub, who is currently on sabbatical at AHRI from the University of Buenos Aires. Martin is a good friend of AHRI, visiting a number of times on sabbatical and also completing his PhD here between 2001-2005. As you'll learn in more detail in this podcast, in his sabbatical period this time at AHRI, he will write a review on the impact of resistance endowing mutations on plant fitness. We also hear from Martin about the differences in farming between Argentina and Australia and we talk conceptually about what would happen if t...
2018-03-2817 min
AHRI SnapshotsHerbicide resistance survey results overviewEvery five years, Mechelle Owen, one of our dedicated AHRI researchers, undertakes the massive task of visiting 500 fields in Western Australia just before harvest to sample seeds of surviving weeds for resistance testing with GRDC support.So far, we have reported on the results from the latest survey in AHRI insight, looking at ryegrass resistance. You can check it out here: https://ahri.uwa.edu.au/has-herbicide-resistance-in-ryegrass-in-wa-plateaued/In this podcast, Mechelle gives an overview of her results so far. We'll be publishing further podcasts and blog posts on Mechelle's research as the data is analysed and published. Music: bensound...
2018-03-1408 min
AHRI SnapshotsProfessor Baruch Rubin commentates on night spraying and Israeli farming systemsAHRI was recently lucky enough to be visited by Professor Baruch Rubin from the Hebrew University of Jerusalem. Baruch completed a sabbatical in AHRI 15 years ago, so we were delighted to welcome him back for his short visit. In this podcast, Baruch commentates on night spraying and sheds light on some of his research in this area. He also gives insights into how farming systems in Israel compare to those in Australia.Music: bensound.comYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2018-02-2813 min
AHRI SnapshotsPlant fitness and resistance explainedThis podcast with AHRI Principal Research Fellow Dr Qin Yu focuses on explaining some of the more tricky aspects of the paper:A double EPSPS gene mutation endowing glyphosate resistance shows a remarkably high resistance costThis paper was a collaboration between AHRI researchers Heping Han, Qin Yu, and Steve Powles, as well as past AHRI researchers Adam Jalaludin and Martin Vila-Aiub.AHRI researcher Heping Han and others with GRDC support recently found a large fitness penalty in glyphosate-resistant crowsfoot grass. We have previously reported on this glyphosate resistance here. At the time we could see by looking at the...
2018-01-3110 min
AHRI SnapshotsManaging wild oats in Western Canada and AustraliaWith the exciting news of Hugh Beckie being announced as the new AHRI Director (commencing in July 2018), we thought it might be fitting to release this interview we did when he was here in Perth.Hugh discusses the issue of wild oats in Western Canada and the tactics being used to control this weed. We then hear from AHRI extension officer Paul McIntosh, who gives us a local perspective, discussing the issues which the northern region are facing with this weed (which is also known as black oats).Dr Hugh Beckie will commence as AHRI Director in mid-2018Music...
2018-01-1610 min
AHRI SnapshotsTodd Gaines explains the significance of Steve's awardDr Todd Gaines recently visited AHRI and took time out to explain the significance of AHRI Director Stephen Powles' award. Steve recently won the American Chemical Society International Award for Research in agrochemicals.He's the first Australian to win the award, which is given to a scientist who has made outstanding contributions to the field of agrochemicals at the international level, with their vision and sustained contribution having opened new horizons for investigators in their field and beyond.Steve was recognised for his long-standing research contribution to identifying the role of cytochrome P450 enzymes in endowing herbicide resistance in...
2017-10-0410 min
AHRI SnapshotsDr Greg Rebetzke talks about research into high vigour wheatCSIRO wheat breeder Dr Greg Rebetzke talks to Jessica Strauss about the research being conducted into developing a new high vigour wheat. What if we could have a wheat variety that could play the yield game and the competition game? What would that look like? Perhaps a dwarf wheat, with a long coleoptile, prostrate growth habit (like barley), early vigour, leaves like solar panels, and of course, high yield. Well, that’s exactly what Greg is attempting to develop as part of a GRDC-funded high vigour wheat project. High vigour kinds of wheat are not only good for competing wi...
2017-09-2008 min
AHRI SnapshotsRick Llewellyn explains the new Brome RIM and upcoming Barley Grass RIMYou may have used the handy Ryegrass RIM AHRI developed. Now, thanks to the efforts of CSIRO and GRDC, as well as AHRI, new RIM models for both brome and barley grass will become available to use by farmers, agronomists and researchers. CSIRO Farming Systems Scientist Rick Llewellyn explains why the new models have come about, how they can be used and the benefits of using them in this podcast with Jessica Strauss.For some more info on Ryegrass RIM: it's a hands on, user-friendly decision support software that allows farmers and advisors to evaluate the long-term cropping profitability...
2017-09-0605 min
AHRI SnapshotsChinese Scholars at AHRIWe're really fortunate to have excellent Chinese visiting scholars and Ph.D. students at AHRI. In this podcast, Steve Powles chats with Jessica Strauss about how the win-win program started. Dr. Yu Qin, is the senior researcher at AHRI and manages all the Chinese scholars and Ph.D. students. She regularly visits China and recruits students to continue their studies at AHRI. Steve explains how that all began. We also learn in more detail about what visiting scholars Dr. Qiong Peng and Dr. Xia Yang are focusing on in their research here at AHRI. We also learn more about...
2017-08-1710 min
AHRI SnapshotsHarvest Weed Seed Control and Diversity Era is liveAHRI Director Stephen Powles discusses the latest paper out of the research group "Harvest Weed Seed Control Systems are Similarly Effective on Rigid Ryegrass" and talks about the positive results. You can read it in full here: http://ahri.uwa.edu.au/publications/harvest-weed-seed-control-systems-are-similarly-effective-on-rigid-ryegrass/Jessica Strauss also catches up with Peter Newman to discuss the new free online course on HWSC through WeedSmart's Diversity Era. The course offers nine modules which can be completed over a two hour period, or at your leisure, with some quizzes to keep you on your toes! You'll be full bottle on everything HWSC...
2017-05-3113 min
AHRI SnapshotsChaff deck developer Colin Hutchinson chats weed controlColin Hutchinson developed the chaff deck and has had great success with it. He farms out of Tammin in which is in the southern part of Western Australia.Take a listen to find out more about how he's managed to keep the weeds at bay and the reasons behind why he believed the chaff deck is a great tool.To get more info on all our podcasts, head on over to the AHRI website here: http://ahri.uwa.edu.au/home/podcasts/Music: bensound.comYou can follow AHRI on Twitter here. To learn more about AHRI's...
2017-05-0405 min
AHRI SnapshotsRoberto Busi explains research into 2,4-D resistance in wild radishOur latest published paper is Inheritance of 2,4-D resistance traits in multiple herbicide-resistant Raphanus raphanistrum (wild radish) populations. In this podcast, Roberto Busi explains the findings of his study.In his research, Roberto found the inheritance of 2,4-D resistance in two Raphanus (wild radish) populations in which previous AHRI research had well characterised 2,4-D resistance. In both populations, the 2,4-D resistance was found to be clearly inherited as a single, nuclear (pollen transmitted) dominant or near-dominant gene trait. It is noteworthy that the 2,4-D resistance gene trait is strongly dominant, whereas often single gene resistance is semi-dominant. This clear...
2017-04-0508 min
AHRI SnapshotsGlufosinate resistance explained with Adam JalaludinAdam Jalaludin discusses his PhD work into Crowsfoot Grass resistance to glufosinate. To find out more about Adam's work, check out the AHRI insight on his research here: http://ahri.uwa.edu.au/glufosinate-resistance-we-know-what-its-not/Music: bensound.comYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2017-03-2211 min
AHRI SnapshotsCan simulation modelling be used to explain low rates of pre-emergent herbicide resistance?Herbicide resistance, it's a tricky beast! Simulation modelling is looking to help us understand it better and in shorter time frames though (phew). AHRI PhD Candidate Gayle Somerville explains the findings in her paper "Why was resistance to shorter-acting pre-emergence herbicides slower to evolve?". AHRI Director Steve Powles also gives us some context to how this research can be applied in the field.If you'd like to find out more about Gayles paper, you can read it here: http://ahri.uwa.edu.au/wp-content/uploads/2017/03/Why-was-resistance-to-shorter-acting-pre-emergence-herbicides-slower-to-evolve.pdfMusic: bensound.comYou can follow AHRI on Twitter here. To...
2017-03-0811 min
AHRI SnapshotsRoberto Busi explains pre-emergent herbicidesAHRI researcher Roberto Busi explains his research and its implications on using pre-emergent herbicides. Timely advice for growers and agronomists out there!We recently did a series on pre-ems for the AHRI insight blog. You can read more on it here: http://ahri.uwa.edu.au/mini-series-pre-emergent-a-tale-of-four-herbicides-season-finale-episode-4-redemption/ Music: bensound.comYou can follow AHRI on Twitter here. To learn more about AHRI's research and team, check out the website here.
2017-02-1609 min
AHRI SnapshotsBest options for cleaning seed!While Steve Powles provided a great overview on cleaning seeds before Christmas, this podcast looks more closely at the different options available to get your seed clean and weed free! Jessica Strauss chats with AHRI researcher Mechelle Owen about her recent trials & best advice for cleaning seed. Hannafords' Gary Hamdorf explains how mobile cleaning works & Perry Hodgkiss from Bruce Rock Seed Cleaners in WA explains the elusive gravity table & more! For more on seed cleaning, you can also check out this AHRI blog: http://ahri.uwa.edu.au/clean-seed/Music: bensounds.comYou can follow AHRI on...
2017-02-0815 min