122 episodes

AHRI Snapshots is a podcast which provides information on what we do at the Australian Herbicide Resistance Initiative, as well as finding out what other researchers in weed science are up to around the country and the world. AHRI's researchers work out of the University of Western Australia, right next to the beautiful Swan River in WA's capital, Perth.

AHRI Snapshots AHRI Snapshots

    • Government
    • 5.0 • 2 Ratings

AHRI Snapshots is a podcast which provides information on what we do at the Australian Herbicide Resistance Initiative, as well as finding out what other researchers in weed science are up to around the country and the world. AHRI's researchers work out of the University of Western Australia, right next to the beautiful Swan River in WA's capital, Perth.

    The future of LiDAR in detecting weeds at harvest

    The future of LiDAR in detecting weeds at harvest

    In this episode, we're catching up with former AHRI PhD candidate, Nooshin Shahbazi, who is officially now a doctor, after her successful PhD completion.   
    Nooshin’s thesis is entitled “Use of Light Detection and Ranging (LiDAR) to detect and map weeds that grow taller than crops at harvest”. 
    We’re hear from Nooshin on her thesis findings and what the future might hold for LiDAR in weed detection in crops. 

    • 9 min
    Dr Mechelle Owen shares preliminary results from latest random resistance survey

    Dr Mechelle Owen shares preliminary results from latest random resistance survey

    AHRI's Dr Mechelle Owen has been collating data from the 2020 random resistance survey. This is part of a national project, with investment from GRDC.

    Mechelle has been conducting these random surveys for a number of years and so she shares some of the trends in this interview she has identified from the 2015 survey results compared to these latest preliminary results from Western Australia. 

    Some of the results available and shared in this interview include the resistance status of barley grass, brome grass and wild radish. 

    One of the trends Mechelle identified was the spread of SU resistance in brome grass. Initially resistance was only picked up in the northern agricultural region in WA. In 2015, this resistance spread further south into the central and southern regions. This trend was again picked up in the latest 2020 data. 

    To hear more details about the results and trends, take a listen!

    • 9 min
    AHRI Director Hugh Beckie reflects on achievements ahead of retirement

    AHRI Director Hugh Beckie reflects on achievements ahead of retirement

    On 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. 

    • 11 min
    Reduced cinmethylin sensitivity identified in annual ryegrass in lab

    Reduced cinmethylin sensitivity identified in annual ryegrass in lab

    In 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 can read the paper in full here. 

    • 5 min
    What is the relationship between developing herbicide resistance, seed size and seed dormancy?

    What 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 Twitter by clicking on their names. 

    • 9 min
    First case of glyphosate & paraquat resistant annual ryegrass found in WA crop field

    First case of glyphosate & paraquat resistant annual ryegrass found in WA crop field

    For the first time in Western Australia, annual ryegrass from a cropped paddock was found to be resistant to glyphosate and paraquat (among other modes of action).
    AHRI Senior Research Fellow Dr Roberto Busi joins us on the podcast today to give an overview of this finding as a pre-cursor to an upcoming WeedSmart webinar.

    In this webinar,  he will present the preliminary results he obtained in recent glasshouse trials, which aimed to characterise the resistance.
    Farmanco Agronomist Consultant Brent Pritchard will provide some context on how this resistance evolved in the field.
    Roberto will conduct two field trials in 2022. He will explain what treatments he’s planning to test, and attendees will have the opportunity to provide feedback on those treatment options.
    You can register for this webinar which is occurring on March 30 by clicking on this link.

    • 9 min

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