Detect, then spray
For the past few years John Single and his son Tony have been using the air-borne weed sensor, Single Shot, developed by John’s other son Ben, to rapidly detect and map weeds on their dryland cropping property, Narratigah, near Coonamble, NSW. Read more here.
Optical spray has a good fit in CQ
CQ grain grower Kurt Mayne bought a weedIT boom in 2019 and has been impressed with the benefits that have come with the addition of an optical sprayer to their weed control program. Find out more here.
Farming moisture : Beating weeds
Across the 4500 ha cropping area at ‘Narratigah’, the weed numbers are low as a result of the Single’s ‘farming moisture’ philosophy, which involves planting whenever there is sufficient subsoil moisture to establish a competitive crop on their heavy clay soils. Read the case study here.
Soil health produces more crop, less weeds
When constraints like soil acidity are addressed, crops are more competitive against weeds. Read more here.
Mechanical desiccation of mungbeans
Mungbean growers are interested in the possibility of using mechanical methods to desiccate crops prior to harvest – there’s a lot to learn yet but Lindsay Evans has given it a go and expects there to be a weed control spin-off benefit. Read more here.
159: Controlling late season weeds and driving down the weed seedbank
After a good couple of years in much of the Southern Region for rainfall, there is late season weeds coming through the crop.
In this episode, we hear from our Southern Region Agronomist, Greg Condon, who provides a great overview of the tools available to growers.
Elders Agronomist, Jason McClure talks to us about his experience with his clients in Naracoorte and surrounds in South Australia with windrowing to control ryegrass.
Elders Agronomist Jason McClure
Farm Manager of Viridis Ag in Junee, Andrew Wilson, NSW, also joins us to share his experience with adopting tools like soil amelioration, diverse crop rotations and chaff decks to get on top of ryegrass.
We’ve updated Harvest Weed Seed Control 101! Our Communications Officer Jessica Scholle worked hard on this, with yourself and Dr Michael Walsh from University of Sydney. Register to do the freshly updated and free course here.
Our webinar recording on intercropping is now available for you to watch online. Our Southern Extension Agronomist Greg Condon hosts, with guest presenter Dr Andrew Fletcher, who is a farming systems scientist at CSIRO. In this webinar, the principles of mixing different crops together and how this can potentially provide weed management options for growers is outlined. Watch it here.
We also have a new WeedSmart Shorts video out with our Southern Extension Agronomist Chris Davey and Uni of Adelaide’s Dr Chris Preston on what the herbicide resistant hot spots are in the most recent ryegrass survey. Watch it here.
Peter Bach – Stripper front and chaff deck
Aiming for 130 per cent utilisation of their cropping land through the year, Peter and Kylie Bach have developed a farming system that extracts full value from barley stubble and minimises weed pressure.
Read the full case study article.
157: How giving the soil a light tickle can help with uniform weed control
Kelly Tillage has just come on board as a Silver Partner of WeedSmart, so we’re really excited to introduce them to you in this podcast.
We’re also going to have a chat with Tom Woods from Woods Group based in Goondiwindi about seed cleaning and what growers need to look out for across the entire chain to ensure the best quality seed is planted at seeding time.
News & Links
Dr Mechelle Owens research on seed cleaning: what works best?
Webinar: Can intercropping help with weed management?
Our Southern Extension Agronomist Greg Condon is hosting with guest presenter Dr Andrew Fletcher, who is a farming systems scientist at CSIRO. Andrew is passionate about the emerging role of diverse cropping systems. In this webinar, we’ll outline the principles of mixing different crops together and how this can potentially provide weed management options for growers. Register here.
Ask an Expert: What can I do at harvest to reduce my future weed burden?
Western Extension Agronomist Peter Newman fills us in on what people can do at harvest to reduce their future weed burden.
155: Why crop topping is a great tool to prevent weed seed set
It’s hard to believe that harvest is just around the corner! In light of this fast approaching reality, we wanted to talk about crop topping and spray topping.
Each of our WeedSmart Extension Agronomists provide a rundown on what to look out for in their cropping regions in regards to crop topping, swathing and desiccation.
WeedSmart Southern Extension Agronomist Greg Condon guest co-hosts for this podcast.
Paul McIntosh, Northern Region: crop topping or swathing/windrowing winter pulses, e.g. faba beans – jump to listen at 18:00
Jana Dixon, High Rainfall Zone: crop topping barley and spray topping pastures – jump to listen at 30:00
Chris Davey – desiccation and crop topping pulses – jump to listen at 41:30
Greg Condon – crop topping canola – jump to listen at 55:00
Dr Chris Preston, University of Adelaide, also joins us to explain the mode of action classification system changes from a letters system to numbers system and what it’ll mean for growers.
Dr Chris Preston explains the changes to MoA classification for herbicides in Australia from letters to numbers.
GRDC Pre-Harvest Herbicide Use Fact Sheet
Global Herbicide Classification Look-Up
Recent WeedSmart Content
News Article: Chaff carts were made for feeding livestock
Ask an Expert Article: How can I set up my summer crops to help manage weeds? Our expert is Belinda Chase, who is an Agronomist with Dalby Rural Supplies
Webinar recording: Mixed farming – does it really help control resistant weeds? Greg Condon hosts and Agronomist Craig Drum is our guest presenter.
I promised a holiday picture of sea lions, and I’m going to deliver. Here’s a playful sea lion who hung out with me when I was snorkelling in Jurien Bay.
Sweet sea lion in Jurien Bay (Jessica Strauss).
Rod Birch on how the Big 6 is keeping weeds at bay at Catalina Farms
Catalina Farms is approximately 13,000 ha of 100% cropping, with 65% wheat, with the other 35% comprising of 20% canola and 15% lupins. The longterm rainfall is about 330ml per year and around 250-280ml of growing season rainfall.
Taking on a new property usually has its challenges, but there can be upsides too. Some of the challenges at Koobabbie were related to the fact it had been a livestock property and cropping machinery had never having been run through it. However, Rod explained that they have had some great news about the herbicides they are able to use.
Through the University of Western Australia’s resistance testing service, run by Dr Roberto Busi at AHRI, they found out some older chemistries were still effective, which was a pleasant surprise. Daniel Birch explains below in the Regional Update Podcast what they found out and how they used this information in their planning.
1:10 Crop rotations – Rod’s favourite rotation is Lupins – wheat – canola – wheat. It provides a lot of diversity for Modes of Action, as well as allows for nitrogen to go back into the soil through the lupin phase.
2:10 Crop Competition – the Birches are big fans of crop competition and it’s an essential part of their approach to controlling weeds.
3:00 Double knock – conditions haven’t been suitable for a double knock since 2016, but when the opportunity arises, it’s an important tool.
4:21 Mix and rotate herbicides – the crop rotations used at Catalina allow for really diverse chemical groups to be used, which is a great tactic to keep resistance at bay.
5:52 Stopping weed seed set – the Birches are trying to eliminate as many weeds in the crop as possible. Crop topping is a tool that they employ, as well as late spraying where necessary.
6:49 Harvest weed seed control – seed destruction is on the horizon at Catalina, but logistically has been a bit tricky.
7:21 Acquiring Koobabbie – it has been exciting for the Birches to be able to introduce more diverse rotations. They’ve been able to use Modes of Action which have never been used before.
9:48 Soil amelioration – liming has been a really beneficial tool for Catalina Farms. They also put out pot ash and gypsum. Deep ripping has also been a great tool to remove the compaction layer.
11:29 Big 6 benefits – controlling weeds is such an important strategy at Catalina Farms. Rod Birch said “We’ll never have a ceasefire on the war on weeds!”.
WeedSmart Week Forum Day Videos
List of videos
Interviews with the Esperance Pioneers. Chair: Lisa Mayer, interviewing Neil Wandel & Theo Oorschot
Rotating buys you Time, mixing buys you shots
Efficacious use of the new pre-ems, Brent Pritchard
Delivering regionally focused research
Crop competition in wheat and canola, Hugh Beckie
Summer weed control
Strategies for control of ryegrass, marshmallow, fleabane, portulaca, Greg Warren
Rotations to stop seed set and preserve chemistry, Tom Longmire
Soil Amelioration, Tom Edwards
Crop competition: Reduced row spacing, higher seeding rates, east-west sowing, precision seed placement & competitive varieties, Theo Oorschot
Farmer Experience – Utilising crop competition strategies and the Big 6, Mic Fels
Weed control – farmer systems discussion panel – Chair: Peter Newman, with Mark Wandel and Laura Bennett
What’s next in spray technology? Andrew Messina
What’s next in spray technology 2? Guillaume Jourdain
Innovation Panel – Chair: Ben White, with Guillaume Jourdain, Andrew Messina
Stacking the Big 6 in farming systems in WA presented by Greg Condon, with Peter Newman