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Catalogue: GRDC Media
SA sowthistle populations confirmed resistant to 2,4-D.. Resistance to the Group I herbicide 2,4-D in sowthistle has been confirmed in South Australia... A major weed of cropping systems north of Dubbo in New South Wales for more than 15 years, sowthistle is now considered a significant emerging weed in southern and western farming systems and will be a focus of the Grains Research and Development Corporation's project on the evolution mechanisms and inheritance of herbicide resistance being led by Dr Chris Preston who is based at the University of Adelaide...
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Catalogue: GRDC Updates
Growers that have the weed seed bank under control will save herbicide costs; be able to use diverse tactics that would otherwise be cost prohibitive; and, by reducing the frequency of herbicide applications, will delay the onset of herbicide resistance... With any discussion on managing resistance we need to start with the basics and understand why we have the problem in the first place... Registration of high application rates by this technique may allow the control of resistant weeds that have survived a preceding application of a different mode of action...
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Catalogue: GRDC Media
A survey of farmer paddocks across the Western Australian grainbelt has confirmed a big increase in the level of herbicide resistance in wild radish to commonly used Group B selective herbicides... Details of current levels of herbicide resistance in wild radish will be outlined at this month's Agribusiness Crop Updates, which are supported by the Grains Research and Development Corporation (GRDC) and the Department of Agriculture and Food (DAFWA)... Ms Owen said that while glyphosate, atrazine and pyrasulfatole/bromoxynil (Velocity ) were still effective in most cases, growers should not rely on herbicides alone to manage wild radish and other weeds, and should also consider the use of non-chemical methods for weed control...
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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...
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Catalogue: GRDC Media
Mr Congreve said planning a coordinated and effective strategy to control in-crop and fallow weeds, particularly problem grassy weeds, would help growers maximise crop yields while delaying the development of resistance on the farm... The second webinar on December 10 will address the latest research on barnyard grass management through the experience of respected industry experts Tony Cook from NSW Department of Primary Industries (NSW DPI) and Michael Widderick and Jeff Werth from the Department of Agriculture, Fisheries and Forestry (DAFF Queensland) who have been extensively studying the ecology, evolution of resistance and management of barnyard grass in fallow and summer crops... Caption: Mark Congreve, Senior Consultant ICAN says planning a coordinated and effective in-crop strategy to control weeds, particularly problem grassy weeds, would help growers maximise crop yields while reducing the likelihood of developing a herbicide resistance problem on-farm...
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Catalogue: GRDC Updates (West)
Mention of a trade name or company in this publication does not imply endorsement of any product or company by Department of Agriculture.. Project No.: ELD2 Paper reviewed by: Tim Scott (Elders Limited) Crop Updates is a partnership between the Department of Agriculture, Western Australia and the Grains Research & Development Corporation -48.. Crop Updates is a partnership between the Department of Agriculture, Western Australia and the Grains Research & Development Corporation -54 "Blackleg"..
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Catalogue: GRDC Updates
Table 1: Effect of group B herbicides at recommended and greater than recommended rates on grain yield, plant density, dry matter at maturity and visual plant damage of two lentil varieties at two sites in SA, 2011... PBA HeraldXT (tested as CIPAL0702) has improved tolerance to the herbicide flumetsulam (e.g. Broadstrike , Multitude ), plus reduced sensitivity to some sulfonylurea and imidazolinone herbicide residues... Preliminary results have shown there was no effect of crop top timing on the incidence of mould in lentil in chickpeas high levels of mould were detected in the early crop topping treatment compared to all other treatments regardless of variety used (Table 2)...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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