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Catalogue: GRDC Updates
New pre-emergent herbicides offer new opportunities to control grass weeds, choosing the right herbicide for the situation will maximise control... Surveys across South Australia and Victoria from 2005 show an increase in incidence of resistance to herbicides in annual ryegrass populations (Table 1)... Sakura provides control of annual ryegrass, silvergrass, barley grass, annual phalaris and toad rush...
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Catalogue: GRDC Media
A new online resource is a good first 'port of call' for Western Australian growers seeking information about managing summer weeds, which are currently widespread... Growers know that weeds allowed to grow during a fallow will use available soil water, use soil nitrogen and add seeds to the seed bank, increasing weed pressure and control costs in following seasons... Log in or register to leave a comment...
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Catalogue: GRDC Updates
There is limited data to support this concern in the southern HRZ. Trials conducted over several years at Lake Bolac, Werneth and Inverleigh showed no significant increase in ARG population in 2013 when grazed in summer and winter compared to no grazing (Figure 1)... Population of annual ryegrass measured in late winter over consecutive years at Inverleigh, Lake Bolac and Werneth... We believe of greater importance is the amount of ARG that is likely to survive late in the cropping phase, irrespective of whether grazing has occurred or not...
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Catalogue: GRDC Updates
In the northern agricultural region of WA in 2010 it became very apparent that the growers with low weed seed banks were able to start dry sowing early without the need to wait for a weed germination... The growers have very few livestock and are sowing the entire farm to crop... To sow a large area of crop, early, the only way to succeed is to practice integrated weed management to achieve a very low weed seed bank...
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Catalogue: GRDC Media
Growers armed to fight herbicide resistance (West, 6 April 2010).. An army of grain growers is spreading out across Western Australia, kitted out with the latest weapons to fight herbicide resistance after attending a recent series of Integrated Weed Management (IWM) workshops in Moora, Wyalkatchem, Darkan, Nyabing, Green Range and Kendenup... Coordinated and presented by Andrew Storrie of Agronomo, the workshops highlighted the need to take action on weeds, and particularly seed banks, to delay the establishment of resistance and deal with it once it occurs. "..
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Catalogue: GRDC Media
GRDC western regional panellist Chris Wilkins says research into 'emerging weeds' in WA includes weed surveys and experiments to develop and demonstrate appropriate control tactics... In WA, Northam-based Department of Agriculture and Food (DAFWA) researcher Abul Hashem is leading work under the projects 'Seed bank biology of emerging weeds' and 'Improving integrated weed management (IWM) practice of emerging weeds in the southern and western regions'... Summer weed species that are glyphosate tolerant are causing problems, including button grass, fleabane, tar vine, windmill grass, sowthistle and caltrop...
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Catalogue: GRDC Media
GRDC western regional panellist Chris Wilkins says research into 'emerging weeds' in WA includes weed surveys and experiments to develop and demonstrate appropriate control tactics... In WA, Northam-based Department of Agriculture and Food (DAFWA) researcher Abul Hashem is leading work under the projects 'Seed bank biology of emerging weeds' and 'Improving integrated weed management (IWM) practice of emerging weeds in the southern and western regions'... Summer weed species that are glyphosate tolerant are causing problems, including button grass, fleabane, tar vine, windmill grass, sowthistle and caltrop...
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Catalogue: GRDC Media
Grain growers and advisors have a new ally in the battle against Feathertop Rhodes grass (FTR) - the Integrated Weed Management of FTR manual... The recently released manual offers an overview of FTR and its biology as well as practical advice on all aspects of FTR management including control tactics, post-emergent and residual herbicide options, the use of crop rotations, advice on chemical groups to include in a management program and implementation of an effective integrated control strategy... Mr Aisthorpe said the effective long term control of FTR could only be achieved by using a combination of practices such as planned use of residual and knockdown herbicides, crop rotation, spot spraying/WeedSeeker /chip hoe and strategic tillage...
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Catalogue: GRDC Media
Grain growers and advisors have a new ally in the battle against Feathertop Rhodes grass (FTR) - the Integrated Weed Management of FTR manual... The recently released manual offers an overview of FTR and its biology as well as practical advice on all aspects of FTR management including control tactics, post-emergent and residual herbicide options, the use of crop rotations, advice on chemical groups to include in a management program and implementation of an effective integrated control strategy... Mr Aisthorpe said the effective long term control of FTR could only be achieved by using a combination of practices such as planned use of residual and knockdown herbicides, crop rotation, spot spraying/WeedSeeker /chip hoe and strategic tillage...
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Catalogue: GRDC Final Reports
One of the most effective weapons in the battle against annual ryegrass is growing a competitive crop... The outcome of Project ACR2/4 was assessed from this viewpoint over its eight-year life... Clover pasture - ST 0 0 36.3* 68 2000 - - 24/6 - Westonia wheat (100) 0 0 2.61 316 2001 SB C 6/6 - Arrino wheat (100) 0 0 3.62 726 2002 SB C 10/6 - Westonia wheat (100) 8 8 1.42 186 2003 NB - 2/6 - Arrino wheat (100) 8 8 3.58 541 2004 SB - 1/6 - Westonia wheat (130) 10 5 3.36 315 8 year cumulative 68 2137 w= kg ha -1wool the excellent result within this block is clearly linked to two major factors: o a generous period of time out of crop presenting an opportunity for a significant weed break...
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