Webinars

Our webinars bring you the latest on-farm strategies farmers and agronomists are using to manage weed numbers in broadacre crops. Anywhere you have an internet connection, on a smartphone or computer, you can register and join us for one of our regular webinar series.



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Know thy enemy – biology of our most problematic crop weeds with Dr Catherine Borger

These weeds cost growers $22.5 and $1.7 million per year, respectively. Understanding the ecology of these species is vital to developing a successful weed management plan.
A five-year GRDC project produced results on emergence patterns, seed bank persistence, seed shedding and competitive ability of great brome and barley grass, in Western Australia and South Australia (‘Seed bank ecology of emerging weeds’ UA00156).
The project found that three to four years seed set control was needed to remove a great brome or barley grass soil seed bank.
Great brome had high seed production in Western Australia and South Australia. Barley grass had much higher seed production in South Australia than Western Australia. Great brome grass and barley grass reduced crop yield, and in 2019, great brome at low to high densities reduced economic returns from a Mace wheat crop at Wongan Hills by $90-205/ha. Barley grass reduced economic returns of wheat by $67-138/ha.
Data on weed ecology and competitive ability was used to update a decision support tool; the Weed Seed Wizard (WSW).
The updated model was used to investigate harvest weed seed control (HWSC) as a potential management technique for great brome grass and barley grass.
The modelling indicated that harvest weed seed control is a valuable tool in the management of these species, even in the years where most weed seed is shed prior to harvest.
You can read Catherine’s paper here: Great brome and barley grass – modelling the long-term value of harvest weed seed control

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WeedSmart in HRZ – practical options for dealing with ryegrass

Effective ryegrass control is becoming increasingly difficult in High Rainfall Zone farming
systems.
This webinar is designed to help growers and agronomists explore farming system-
based options to manage annual ryegrass populations in our cropping areas.
Grassroots Agronomy’s Greg Condon is a leading agronomist from Southern NSW, involved with the GRDC’s National WeedSmart project, which focuses on ‘the farmer calling the shots, not the weeds’. Greg will present options, (not just chemical) which HRZ growers could integrate into their farming systems to help manage difficult-to-control weeds.
This webinar is brought to you by Southern Farming Systems and the Grains Research Development Corporation and presented by WeedSmart.

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Webinar

The future of chemical use in farming with Mark Congreve

Join WeedSmart’s Paul McIntosh and Shannen Barrett as they host ICAN’s Mark Congreve who discusses the future of chemical use in farming including market drivers, herbicide discovery, automation, future for glyphosate & paraquat and much more!

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Webinar

Crop Competition Q&A

Dr Gurjeet Gill & Dr Michael Widderick answer questions that may have cropped up for participants of Crop Competition 101.
They also provide a broader overview of the crop competition work being delivered by their respective teams.
If you haven’t registered to do our free Diversity Era course, Crop Competition 101 yet, you can do so here.

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What’s the cost of HWSC for you? With WeedSmart’s Peter Newman

It depends… on crop type, yield, area, number of harvesters and so on.
The costs of harvest weed seed control (HWSC) tools have been calculated using best estimates to calculate the effect on yield and crop area and are limited to cereal crops.
Pete Newman, WeedSmart Western Extension Agronomist has developed this interactive model and will step you through the benefits of different strategies and how to use the HWSC cost estimate tool to measure the impact to your cropping program.
DOWNLOAD MODEL HERE

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What’s next in broadacre weed control – is green on green a reality? With Greg Condon

In this webinar, WeedSmart Southern Extension Agronomist Greg Condon (pictured above) discusses weed control techniques especially using site-specific technology and how these are evolving.
Site-specific weed control covers a wide range of tactics from chaff lining to shielded spraying, optical spot spraying and the emerging tech around green on green.
WeedSmart Southern Extension Agronomist Greg Condon will discuss weed control techniques especially using site-specific technology and how these are evolving.
Site-specific weed control covers a wide range of tactics from chaff lining to shielded spraying, optical spot spraying and the emerging tech around green on green.
We also had Dave Tuppen, Product Specialist with Goldacres join us to give us an overview of the green on green product development at Goldacres.
 
As mentioned in the webinar, there are quite a few great resources you might like to check out for further information. Please find them below:
Guillaume Jourdain GRDC Update Paper
Green on green camera spraying – a game changer on our doorstep?
Technological changes enabling rapid advancement for spot-spraying weeds
Related Podcasts

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Management of Feathertop Rhodes grass & Barnyard grass

We can only hope we’re close to the end of a long dry spell and we’ll soon see a break! And when we do, significant rain will see a massive flush of weeds. What will particularly be problematic is grass weeds – Feathertop Rhodes grass, Barnyard grass, Sweet summer grass and Urochloa (liverseed grass).
In this webinar, we hear from Bhagirath Chauhan (pictured above), QAAFI weeds researcher, and Paul McIntosh, WeedSmart’s northern extension agronomist.
They investigate the best strategies to ensure summer crops and the upcoming winter crop are given the resources to achieve higher yields. Controlling summer grass weeds requires a strategy with interventions at various stages of the growing season.
Bhagirath explains the biology of the most problematic grass weeds and how to employ strategies that provide your summer crop and subsequent winter crop with ideal conditions for growth.

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What’s the state of play of glyphosate?

Despite the overwhelming scientific consensus regarding glyphosate’s safety, the discussion is now infiltrating Australian communities and farmers are questioning what they would do if we lost glyphosate here.

Professor Stephen Powles and Bayer Crop Science Head of Public Affairs Carissa Buckland (Matthew Cossey unfortunately couldn’t be with us this time) joined WeedSmart and AHRI Western Extension Agronomist Pete Newman to give an overview of the current situation surrounding the world’s most used herbicide and what this means for the Australian grains industry.
If you missed the webinar, you can catch up above.

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Weed control with automation

Someone who knows a lot about this topic is agriculture engineer and Kondinin Group’s R&D Manager Ben White. Ben joins WeedSmart’s Western Extension Agronomist Pete Newman to give a snapshot of the role automation will play in Australian agriculture, with a specific look at weed control.
Ben provides examples of available technologies and outlines the horizon for automation in agriculture.

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