You are here

herbicide rotation

Categorised under:

Catalogue: GRDC Updates
Field trials undertaken over the last 4 years have investigated various pre-emergence herbicides for brome grass control in wheat... In a recent survey by Fleet and Gill (2008), farmers in low rainfall districts in South Australia and Victoria reported increasing incidence of barley grass in their crops... In the paper we will report results of studies undertaken to develop management strategies for brome and barley grass...
Related categories:
Catalogue: GRDC Final Reports
The project has demonstrated over-reliance on glyphosate will lead to glyphosate resistance evolving... The dose response experiments showed that 76 of the annual ryegrass populations were resistant to glyphosate, as were 22 of the barnyard grass, two of the liverseed grass and two of the windmill grass populations... The field trial sites were used for field days for growers and industry in both years...
Related categories:
Catalogue: GRDC Updates (West)
The cross resistance profile to pre-emergence herbicides has been examined in a multi-resistant population of annual ryegrass after pyroxasulfone recurrent selection... Recurrent selection with pyroxasulfone at below-label doses has resulted in pyroxasulfone resistance and cross-resistance to prosulfocarb and triallate... We suggest that herbicide rotation at the full label rate of prosulfocarb, pyroxasulfone, triallate and trifluralin in conjunction with weed seed control at harvest is currently the most sustainable solution for pre-emergence herbicide control of annual ryegrass in cereals...
Related categories:
Catalogue: Ground Cover
Low herbicide rates come home to bite.. An emerging challenge facing researchers and growers managing herbicide resistance is the ability of weeds to evolve resistance to herbicides to which they have not been exposed... Later germinating ryegrass can be exposed to these low doses and, as a result, many grain growers are essentially now repeating Dr Busi's pot trial on a field scale...
Related categories:
Catalogue: GRDC Updates
The cross resistance profile to pre-emergence herbicides has been examined in a multi-resistant population of annual ryegrass after pyroxasulfone recurrent selection... Recurrent selection with pyroxasulfone at below-label doses has resulted in pyroxasulfone resistance and cross-resistance to prosulfocarb and triallate... We suggest that herbicide rotation at the full label rate of prosulfocarb, pyroxasulfone, triallate and trifluralin in conjunction with weed seed control at harvest is currently the most sustainable solution for pre-emergence herbicide control of annual ryegrass in cereals...
Related categories:
Catalogue: Ground Cover
An emerging challenge facing researchers and growers managing herbicide resistance is the ability of weeds to evolve resistance to herbicides to which they have not been exposed... Metabolic resistance, also known as non-target-site resistance, is where the herbicide does not reach the target site (in the plant) because the plant metabolises ('eats') the herbicide before it can get there... Later germinating ryegrass can be exposed to these low doses and, as a result, many grain growers are essentially now repeating Dr Busi's pot trial on a field scale...
Related categories:
Catalogue: GRDC Media
Analysis of the samples has confirmed a small percentage of populations showing resistance to Group B herbicides, including both SUs and IMIs... For brome grass, 12 of the 91 samples showed resistance to SU herbicides... Only one population of brome grass showed resistance to the Group A herbicides, including both FOPs and DIMs...
Related categories:
Catalogue: GRDC Media
Analysis of the samples has confirmed a small percentage of populations showing resistance to Group B herbicides, including both SUs and IMIs... For brome grass, 12 of the 91 samples showed resistance to SU herbicides... Only one population of brome grass showed resistance to the Group A herbicides, including both FOPs and DIMs...
Related categories:
Catalogue: GRDC Final Reports
While the adoption of genetically modified canola has been less widespread than originally anticipated by Australia's oilseed industry, Roundup Ready (RR) canola has been highlighted in this project as a very useful tool for integrated weed management (IWM)... RR canola continues to be promoted as a very useful tool as part of an integrated weed management (IWM) package in the Southern and Western regions, to reduce weed numbers and allow a broader rotation of herbicide groups... As a part of this project, Dr. Linda Hall, associate professor in the Faculty of Agriculture Life and Environmental Science at the University of Alberta, was keynote speaker at the 2012 BCG trials review day...
Related categories: