View time: 69 minutes

Understanding P450s to better manage resistance

Webinar Series: US and Australia share expertise to fight resistance.

Webinar 1: Understanding P450s to better manage resistance

In Part 1 of this webinar series, we look at P450s and understanding how plants evolve resistance to a herbicide that has not yet been used. Colorado State University researcher, Todd Gaines and AHRI’s Roberto Busi are the presenters of this webinar.

Host Peter Newman asks the presenters what the genetic basis of metabolic resistance is.

So, can we control metabolic resistant weeds? Todd explains the science and gives us the answers.

Roberto Busi outlines new results on the interactions between an insecticide and current pre-emergent herbicides to control ryegrass.

Webinar 2: Resistance in corn, soybean & cotton

Part 2 of our Webinar Series: America and Australia share expertise to fight resistance, looks at resistance in corn, soybean and cotton. It features special guest US Professor Jason Norsworthy.

Peter Newman asks Jason if the US is thinking about alternatives to glyphosate. Given their high dependence on RR crops, what are the repercussions of this strategy?

Jason is evangelical in his quest to keep glyphosate working for corn, soybean and corn, soybean and cotton crops. What are the challenges and the strategies being used to address creeping resistance?

You can watch this webinar here.

Related Articles

View all
Video
Webinar

Considerations for pre-emergent herbicides with dry sowing

In this webinar, we focus on what factors influence the residual control of weeds by pre-emergent herbicides with a focus on Trifluralin, Sakura and new-to-market herbicides.
Join Chris Davey, YPAG and WeedSmart Extension Agronomist and Mark Congreve, ICAN Senior Agronomist as they assess the sowing issues in South Australia and discuss strategies on using pre-emergents.
Factors covered include

Soil type/texture
Rainfall forecast (after application)
Characteristics of the herbicide
Characteristics of the crop
Sowing time (tine vs disc) – sowing depth, speed, soil throw, stubble
Resistance status

GRDC Spray Application Manual
This Spray Application GrowNotes™ manual provides information on how various spraying systems and components work, along with those factors that the operator should consider to ensure the sprayer is operating to its full potential.
This manual focuses on issues that will assist in maintaining the accuracy of the sprayer output while improving the efficiency and safety of spraying operations. It contains many useful tips for your spray operations.

Video
Webinar

Farmer questions answered on Group G herbicides and optimum application temperature

In this follow-up to last year’s webinar on Group Gs, Dr Chris Preston, University of Adelaide, Professor of Weed Management and WeedSmart’s Greg Condon focus on farmer questions around Group G herbicide use.
They explain the new Group G chemistry in simple terms and address questions around what temperature range provides optimum herbicide efficacy.

Video
Webinar

How do I make the right decision on using Group Gs?

Choosing and applying the right pre-emergent herbicide can be difficult, particularly if herbicide resistance is becoming a challenge in a no-till system. Join Dr Chris Preston, University of Adelaide (UA) professor weed management and WeedSmart’s Chris Davey as they explain the new Group G chemistry and de-mystifies which Group G works best for winter cropping systems.

Video
Webinar

Testing all of your herbicides for resistance with Roberto Busi

 
Dr Roberto Busi
Roberto discusses what the current levels of resistance to knock-down herbicides (glyphosate and paraquat) are, resistance to new and old pre-emergent herbicides and resistance to clethodim.
The results are discussed with Peter Newman by analysing the pros and cons of herbicide resistance testing and the value of herbicide efficacy and resistance testing with new herbicides coming into the Australian market from 2021.

Video
Webinar

Glyphosate Resistance Update with Peter Boutsalis

Dr Peter Boutsalis from the University of Adelaide joins this webinar to discuss tips to optimise the efficacy of glyphosate and when and when not to use the double knock strategy.
Peter also shares the latest results from the GRDC-funded random weeds survey in the Eyre Peninsula and southern Victoria and how the resistance levels in these areas have changed over the last 5 years.

Video
Webinar

You don’t know what you don’t know about managing weeds

Agronomists play a key role in the northern region, not only in identifying and tackling crop weeds but also in protecting chemistries. In the face of this challenge, utilising the WeedSmart Big 6 tools is showing results in tackling problem weeds.
Join Crop Consultants Australia’s Director Ben Dawson, as he hosts Dr. Chris Preston and Paul McIntosh from WeedSmart and they discuss the role that agronomists can play in breaking this cycle.

Subscribe to the WeedSmart Newsletter