AHRI features

Sustaining herbicides with harvest weed seed management
Rotate, rotate, rotate! Incorporating non-chemical harvest weed seed control methods into cropping systems provides another set of tools to fight weeds and to delay the onset of herbicide resistance.
View full video at the AHRI website


Increase pre-em efficacy through a mix and rotate strategy

Part 1: Control summer weeds for yield and profit
Every $1 spent on summer weed control can potentially return up to $8/ha through moisture and nitrogen conservation. The impact on grain yield as a result of various summer weed control treatments is what Colin McMaster (NSW DPI R&D) refers to as “buying a spring”.  Listen to Colin and Pete Newman (AHRI) as they investigate the $$ benefits of controlling summer weeds.

Ask an Expert column with Colin McMaster
GRDC Summer Fallow Weed Management Manual

Part 2: Increase pre-em efficacy through a mix and rotate strategy
We’ve done a good job of promoting herbicide rotation over the years. And whilst this advice still stands, recent research shows the benefits of mixing herbicides as well.
As American weeds researcher, Pat Tranel, puts it, “rotating buys you time, mixing buys you shots (of herbicide)”. Listen to Pat and Pete as they explore the benefits of the mix and rotate strategy.


Post emergent herbicides


Spray resistant radish early for best efficacy and yield (Grant Thompson, Crop Updates paper 2014)
Herbicide resistant wild radish (Peter Newman)
Controlling herbicide resistant Wild Radish in wheat in the Northern Agricultural Region of WA with a two spray strategy (Peter Newman)
Diverse weed control: Left jab, right hook (AHRI insight)

Part 2:When is it worth rotating from clethodim (Select®) to butroxydim (Factor®)?
Is there any value in rotating the post-emergent herbicides clethodim (Select®) and butroxydim (Factor®)? The research suggests that Factor® will sometimes kill plants that are moderately-resistant to Select® that could help in driving down the weed seed bank. Dr Peter Boutsalis from the University of Adelaide discusses his latest research and observations using both products with AHRI’s Peter Newman.


Double knock applications: extent of herbicide resistance in the north


Preserving glyphosate through diversity

Preserving Glyphosate Through Diversity
When on a good thing, don’t stick to it. This video discusses the global problem of overuse of herbicides, the evolution of herbicide resistance, and the necessity for sustainable weed control practices in farm management.

Article courtesy – AHRI

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