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Of St Anthony’s fire (ergotism) and knowing if your herbicides still work
While rainfall totalling over 200 mm across parts of southern Western Australia in late spring created widespread ryegrass ergot problems at harvest it could provide a real boon for farmers. Strict...
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Giving a RATS newsletter Number 11 - Summer 2014-15
The Australian Glyphosate Sustainability working Group had its annual face-to-face meeting in Adelaide last August and discussed a range of topics critical to keeping glyphosate effective across a...
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Glyphosate resistance in common weeds in California’s tree crops causes heavy...
The top challenges facing California’s tree nut growers in controlling weeds aren’t new weed species but new problems with long-standing weed threats. “The biggest difficulty continues to be expansion...
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Another Aussie abroad – Herbicide Resistance the main focus at Weed Science...
UA00124 Project member Tony Cook recently attended the Weed Science Society of America annual meeting at Lexington, Kentucky, to get the low-down on resistance issues from an American perspective. Tony...
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Patch management of annual ryegrass in non-crop areas
One serious weed issue emerging in the Central West region of NSW is the presence of glyphosate resistant annual ryegrass (Lolium rigidum). These infestations are usually seen as patchy clumps emerging...
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Permit for optically activated sprayers updated!
The APVMA has just updated Permit PER11163 for optically activated sprayers including the Weedseeker® optically activated sprayer. This technology has revolutionised fallow spraying and reduced the...
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Does long fallow have a place in Western Australia’s cropping belt? Yes...
Long Fallow Tips: Follow a fallow after wheat and retain the stubble straight after harvest. It needs to sit there for over 12 months so do not want wind erosion. Protect the stubble so do not graze or...
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Feathertop Rhodes grass (FTR) - an increasingly prevalent roadside summer...
In a national GRDC-funded project, Improving Integrated Weed Management Practice of Emerging Weeds in the Southern and Western Regions, a roadside survey is underway to determine what's out there....
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Sowthistle does it again – Now resistant to 2,4-D!
After evolving resistance to the Group B herbicides and glyphosate Sowthistle (Sonchus oleraceus) has now evolved resistance to 2,4-D. Samples from five irrigatResistant (left) and susceptible (right)...
View ArticleGiving a RATS Edition 12 Autumn 2015
Always back the horse named self-interest, son. It'll be the only one trying.
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The USA has now agreed on a definition for “SUPERWEED”
With the explosion in use of the term “SUPERWEED” in the popular and scientific press it has become necessary for the Weed Science Society of America (WSSA) to agree on the ‘official’ definition. This...
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Be a miser and don’t share your herbicides with your neighbours
Over the past few years the amount of information to help you get better value from your herbicides by improving coverage and keeping it in your paddock has exploded. Everyone should note that in 2008...
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Alternative herbicides to control Group I resistant wild radish
Within twelve months of announcing the first Group I resistant wild radish infestation in NSW, our keen research team has completed a wild radish control experiment at Nyngan testing many herbicides...
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Don’t just look at herbicides, use lime on acidic soils for weed suppression
DAFWA field research investigating the impact of lime and herbicides on annual ryegrass and wild radish numbers in low pH soils has found that applying at least at 2.5 t/ha of lime is a valuable tool...
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How to control those giant weeds in fallow - Cultivation or herbicides?
Despite the best of intentions, getting the ideal timing for herbicide applications sometimes falls well short of text book perfect weed control. Occasionally a string of unfavorable events, such a...
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Do you know which herbicides still work? - Do a Quicktest!!!
Herbicide resistance weeds are now starting to drive the farming system in many areas limiting enterprise options for growers and reducing crop yields. A 2013 survey in Western Australia showed that...
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What have we learned about resistance to glyphosate, paraquat and the phenoxy...
Each of these herbicides plays important roles in the Australian agricultural system, roles that are hard to replace with other herbicides. Therefore, there is a need to protect these modes of action...
View ArticleGiving a RATS - Edition 13 Winter 2015
This is the final “Giving a RATS” newletter, as we know it. (Editor wipes a tear from his eye). The GRDC Project UA00124 – “Understanding and Management of resistance to Group M, L & I herbicides”...
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