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wild radish herbicide resistance

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Catalogue: GRDC Media
Grain growers in the southern cropping region are being kept entertained and informed this harvest while they spend endless hours in the cabin... The CD begins with a regional research update from GRDC Southern Regional Panel chair Keith Pengilley and an overview of the new southern stubble management initiative by GRDC Regional Grower Services Manager for the south, Andrew Rice... If you are pressed for time to read the new edition of Ground Cover then you can download an audio presentation of the magazine...
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Catalogue: Ground Cover
To Keep your herbicides: stop survivors from setting seed.. Keeping weeds 'off-balance' by mixing up controls and keeping their numbers low is the aim of integrated weed management (IWM), where different practices are combined to prevent weeds from adapting to a single control option... The interactive, one-day grower workshops focus on how to manage weed populations and ensure that herbicide resistance does not dictate how they farm...
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Catalogue: GRDC Updates
Results 2008/2009 harvest HSD testing The HSD system proved its potential as an effective at harvest weed seed management system by consistently destroying over 90% of the seed of four weed species present in the chaff fraction during the commercial harvest of a wheat crop... 39 (3.3) 1.0 (0.1) 1 Seed in straw were calculated by difference from seed proportions in grain and chaff samples 2 Proportion of annual ryegrass seed in unprocessed chaff surviving HSD treatment 2009/2010 harvest HSD testing High weed seed destruction levels were maintained by the HSD system when subjected to processing high amounts of chaff during the commercial harvest of high yielding wheat, barley and lupin crops (Table 2)... Conclusion Evaluation of the HSD system in commercial harvest situations has determined this system is highly effective (>90%) in destroying annual ryegrass, wild radish, brome grass and wild oat seed during harvest...
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Catalogue: GRDC Updates
Michael Walsh and Stephen Powles, Australian Herbicide Resistance Initiative, Implications of intercepting weed seed at harvest.. Without inputs a very large seed bank (>1000 seed/m2) can be reduced to a very modest one (<100 seed/m2) in just four years... The collection and management of the weed seed bearing chaff fraction can result in significant reductions in annual weed population densities...
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Catalogue: GRDC Media
Australian cereal growers adopting harvest weed seed control systems (HWSC) are driving down weed populations to lower levels on their farms, and extending the life of the herbicides they use... Dr Walsh said the problem of herbicide resistant weed populations globally was particularly severe in production systems where herbicide dependence resulted in a lack of weed control diversity... "Although herbicides remain the number one weed control tool in Australian cropping systems, it is now clear that the inclusion of HWSC systems in weed management programs is enabling weed populations to be driven to very low levels, providing some insurance for the sustainability of remaining herbicide resources," he said...
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Catalogue: GRDC Media
As a grain grower near Mingenew in the Geraldton port zone I'm well aware of the threat posed by wild radish to the financial viability of growers in my region... Recognising the problem, collaborative local research has been conducted investigating herbicidal control of wild radish, and the results will provide guidance to Western Australian growers this season... After identifying wild radish as the main priority for funding in 2012, the research - involving a number of researchers and farm advisers - set about trying to find new herbicide tankmixes for wild radish control as an alternative to using the newer herbicides such as Velocity (bromoxynil and pyrasulfotole) twice in a growing season...
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Catalogue: GRDC Media
New wheat changes weed management options.. James Clark, Grains Research and Development Corporation (GRDC) northern panel chair said Elmore CL Plus , a new Clearfield wheat released by Australian Grain Technologies (AGT) gives growers another tool to combat problem weeds... "There is a discount in moving from a prime hard to hard variety but it may be worth it for the opportunity to reset the system, control weeds and use residual chemicals in the fallow, a practice that would normally lock growers out of wheat that year," he said...
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Catalogue: GRDC Media
Adelaide forum to set the scene for 2013 cropping season.. Farming systems built to withstand the impact of weeds, diseases, pests, seasonal constraints and market vagaries will take centre stage in Adelaide next month... Caption: GRDC Southern Regional Panel chair David Shannon says the annual Adelaide Update plays a critical role in delivering information, knowledge and resources to farm advisers who can in turn inform their farming clients and prepare them for the season ahead...
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Catalogue: GRDC Media
Wild radish warrants radical response.. Successful long-term management of wild radish involves driving down its seedbank to very low levels and doing 'whatever it takes to stop a weed seed blow-out'... Many Western Australian growers have only one effective herbicide mode of action remaining that they can use to control wild radish - one of the most widespread and competitive weeds of grain cropping...
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Catalogue: GRDC Updates
Figure 1: Map of south Western Australia showing Pingrup (Google Earth).. d) Burning and lighting Doug uses the FESA McArthur Index (see Figure 2), a scale used to calculate the fire danger in grassland using temperature, humidity and the wind speed to calculate an index... Doug Smith DB and KA Smith, 435 Farr Rd, Pingrup, WA 6343 0429 201 012 dbkasmith@bigpond.com < Keep browsing 0 Responses to Sustaining 100 per cent crop production - Managing volatility, risk and herbicide effectiveness..
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