Weedlinks

Windrow burning in northern NSW

Windrow burning is a common technique used in WA for weed control. As yet it is not used extensively in NSW. This video tries to address some of the potential issues that may be slowing its adoption in northern NSW.

Australian Herbicide Resistance Initiative (AHRI) Video: Preserving glyphosate through diversity

Integrated Weed Management

The information is categorised under the headings below. Click on the link below to go to the section you require

Integrated weed management manual
Other information on integrated weed management & managing herbicide resistance

- General information
- Managing herbicide resistance
- Seed bank management
- Weed Seed Wizard
- Crop competition
- Double knock
- Remote sensing and herbicide application
- Other integrated weed management tactics
Herbicide resistance technical information
Management of specific problem weeds

- Annual ryegrass
- Barley grass and brome grass
- Barnyard grass and liverseed grass
- Feathetop Rhodes grass
- Flaxleaf fleabane
- Small flower mallow (marshmallow)
- Sowthistle/milk thistle
- Wild oats
- Wild radish
- Windmill grass
IWM tools
Weed identification
Herbicides & chemical companies
Key weeds contacts:

- New South Wales
- Queensland
- Western Australia
- South Australia
- Key contacts for resistance testing

Integrated Weed Management manual

Title

Website Location

Integrated Weed Management manual
The Weeds CRC’s world-class Integrated Weed Management manual, describes a broad range of chemical and non-chemical tactics for weed management aimed at reducing the weed seedbank and the selection pressure for resistance on herbicides. The full 256 manual is available for free download.

IWM Manual contents:

IWM Manual Introduction

Economic benefit
Outlines the economic benefits of IWM in Australian cropping systems using computer model simulations.

Herbicide Resistance
It is crucial to understand the basics of herbicide resistance when managing weed populations that are resistant to one or more herbicide groups, or at risk of becoming resistant.

Agronomy
Discusses agronomic practices that can be used to enhance the results of weed management tactics. Includes many simple, cost-effective management changes for improving crop competition.

Tactics
Provides detailed information on a wide range of weed management tactics and presents trial results from across Australia. Information includes the impact of weed seed bank depletion and how to use the tactic to greatest impact/benefit.

Implementing IWM
Outlines how best to assess the on-farm situation and implement an IWM plan. Lists information that should be collected for each paddock, so that an effective weed management plan can be prepared.

Weeds
Details the characteristics of 20 key weeds of annual cropping across Australia. For each weed there is a recommendation of the most suited weed management tactics for control.

Case studies
Includes a number of grower case studies collected from across Australia. What made them change to IWM? What has been successful? What have been the challenges?

GRDC

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Other information on integrated weed management & managing herbicide resistance

Title	Website Location
General information
WA 2010 Agribusiness Crop Updates: Weed papers (929kb pdf) Papers presented on: Herbicide control of slender iceplant Herbicide tolerance of saltbush and bluebush Chemical control of windmill grass (DAW00158) Use high water rates when applying pre-seeding herbicides to fields with high stubble density (DAW00158) Herbicide tolerance of lupins – influence of soil type and rainfall (DAW00191) Response of new barley varieties to herbicides (DAW00191) Herbicide tolerance of new wheat varieties (DAW00191) Use of below label rate can lead to evolution of herbicide resistant weeds (UWA00112) Herbicide mixtures can effectively kill herbicide resistant weeds Selective spray-topping: Does it abort seed production of herbicide-resistant wild radish? The search for a new lupin herbicide (DAW00123) Colonisation of agricultural regions in Western Australia by flaxleaf fleabane (DAW00158) Weed suppression by crop competition in barley, canola and wheat (DAW00158) Mouldboard plough continues to kick goals (DAW00123) The answer my friend is to burn in light wind (DAW00123) Using image analysis to detect three-horned bedstraw seed in grain samples Can we manage brome and barley grass in cereals? (UA00105) Controlling mature fleabane (UA00105)	Department of Agriculture and Food, Western Australia
WA 2009 Agribusiness crop Updates: Integrated weed management papers (370kb pdf) Papers presented on: Inversion ploughing: Effects of long-term deep burial on weed seed reserves How long can wild radish seeds survive in the soil? An economic comparison of IWM tools Emerging weeds in changing farming systems (UA00105) Eight years of IWM smashes ryegrass seed banks by 98 per cent over 31 focus paddocks (DAW0123) Mouldboard plough—the answer to all of the problems with sandplain farming! (DAW0123) Flaxleaf fleabane—coming to a property near you! Trimming weed seed heads and crop-topping reduce seed-bank of wild radish (DAW00158)	Department of Agriculture and Food, Western Australia
WA 2008 Agribusiness crop Updates: Weed Updates Papers presented on ; wild radish management, IWM techniques and seed banks, herbicide resistance and gene flow, alternatives to trifluralin, knockdowns, tank mixes and novel uses, crop and weed management, herbicide tolerance, other weedy matters.	Department of Agriculture and Food, Western Australia
WA 2007 Agribusiness crop Updates : Weed Updates Papers presented on wild radish management, IWM techniques and seed banks, herbicide resistance and gene flow, alternatives to trifluralin, knockdowns, tank mixes and novel uses, crop and weed management, herbicide tolerance, other weedy matters (Weeds papers from Agribusiness Crop Updates in 2006 and Agribusiness Crop Updates in 2005 are also available at the same site)	Department of Agriculture and Food, Western Australia
IOWA State University Weed Science Although US focused, has a host of interesting articles on weeds and their control. Some include the importance of the canopy in maintaining effective weed control and water conditioners for glyphosate applications amongst many others.	IOWA State University
Weed management principles Effective weed control is critical for maximising crop yields, reducing the weed seed bank and meeting quality standards at harvest. Crop weeds can most effectively be managed by integrating chemical and non-chemical control	DEEDI (Qld)
WEEDpak - a guide for integrated management of weeds in cotton Titles include: Integrated Weed Management, Weed Identification, Herbicide Resistance, Herbicides, Roundup Ready®,Farm Hygiene, Best-Bet Management Guidelines, Managing Problem Weeds, Rotation Crops File size & type: Multiple pdf documents, varying file size.	Cotton Catchment Communities CRC Website
Weed management in Queensland field crops Several useful pages and tools including: Glyphosate resistance tool kit; self assessment of glyphosate resistance risk, links to the "Northern Herbicide Resistance Reporter newsletter"; weed management principles; using herbicides; crop tolerance to herbicides; herbicide resistance; guidelines for managing flaxleaf fleabane, barnyard and liverseed grass, sowthistle and feathertop Rhodes grass	DEEDI (Qld)
E-weed e-weed is a newsletter services targeted to Western Australian agronomists and farmers providing information on weed control issues arising throughout the growing season. Topics include general weed management advice; herbicide resistance and integrated weed management.	Department of Agriculture and Food, Western Australia
NSW DPI weed control in winter crops 2011 The broadacre agronomist's herbicide bible. Rates and registrations for herbicides used in winter broadacre field crops in New South Wales. Full version 3.3 Mb pdf	NSW DPI
NSW DPI weed control in summer crops 2010/11 Rates and registrations for herbicides used in summer field crops in New South Wales. Full version 2.64 Mb pdf	NSW DPI
NSW DPI weed control in lucerne and pastures 2010 Rates and registrations for herbicides used in lucerne and pastures in New South Wales. Full version 1.9 Mb pdf	NSW DPI
NSW DPI weed control in cropping and pastures in central New South Wales Region specific weed management guidelines for crops and pastures in the central west of NSW. Contents include: rotations, weed species shift, integrated weed management, information about; annual ryegrass, barley grass, capeweed, common heliotrope, fealbane, fumitory, horehound, melons, Paterson's curse, quena, saffron thistle, silverleaf nightshade, skeleton weed, wild radish and wild oats, agronomy pastures, fallows, biological control of weeds, herbicide resistance and use. Full version 3.4 Mb pdf	NSW DPI
Managing herbicide resistance
New herbicide management solutions Christopher Preston, Peter Boutsalis, Jenna Malone, Sam Kleeman and Gurjeet Gill GRDC Grains Research Update paper, February 2011	GRDC
Managing glyphosate resistant weeds in Australia Christopher Preston pp. 250-253 17th Australasian Weeds Conference (2010)	CAWS
Risks and RATs: assessing glyphosate resistance risk in paddocks in north-eastern Australia David Thornby, JeffWerth, Matt Curr and Steve Walker pp. 246-249 17th Australasian Weeds Conference (2010)	CAWS
Northern Weeds Factsheet - Managing herbicide resistance in grass weeds in the Northern Region (January 2009) Improved weed management and reduced risk of herbicide resistance are based on good crop agronomy and integrated weed management (IWM) principles. Stop seed-set and keep seed banks small as herbicide resistance is much less likely to develop in paddocks with fewer weeds.	Northern Weeds Factsheet - GRDC
Stopping herbicide resistance in Queensland Author: Steve Walker, Michael Widderick, and Vikki Osten Resistance situation in Queensland, principles to avoid / manage herbicide resistance, herbicide mode of action groups and what to do if you think you've got resistance. File size & type: 52 kb, html	DEEDI (Qld)
Effectiveness of herbicide resistance management strategies Author: Steve Walker Contains information from simulations of long-term impact on the weed seed-bank of different strategies to prevent the development of herbicide resistance. These simulations showed that the most effective strategy was the combination of crop rotation (summer and winter crops), rotation of herbicide groups and growing more competitive crops. Rotation of herbicide groups alone did not prevent rapid development of resistance.	DEEDI (Qld)
The Northern Herbicide Resistance Reporter A newsletter put out by DEEDI (Qld) and NSW DPI. It includes weeds and resistance statistics, news, research outcomes and case studies for Queensland and northern New South Wales. Back copies of this newsletter - available for subscription, contact Michael Widderick on 07 4639 8856 or michael.widderick@dpi.qld.gov.au	DEEDI (Qld)
Seed bank management
Seed persistence of key northern region weeds How long do weed seeds persist in the soil? Authors: Steve Walker, Bruce Wilson, Hanwen Wu, Michael Widderick, Ian Taylor This information reports on seed persistence of key weeds of the Northern Region (barnyard grass, bladder ketmia, climbing buckwheat, common sowthistle, fleabane, liverseed grass, paradoxa grass, turnip weed, and wild oat). It also compares the impact of cultivation and burial depth on persistence, together with implications for weed management	DEEDI (Qld)
Managing the weed seed bank in no-till (509kb pdf) WANTFA fact sheet on managing weed seed bank.	AHRI
Options for managing weed seed set (273kb pdf) WANTFA information on managing weed seed set (September 2010)	AHRI
East–west sowing of wheat and barley to reduce weed growth (1.05Mb pdf) WANTFA article September 2010	AHRI
Weed trimming - a successful non-chemical seed bank reduction technique Glen P. Riethmuller and Abul Hashem pp. 295-298 17th Australasian Weeds Conference (2010)	CAWS
Manipulating the seed bank to manage herbicide-resistant weeds Michael J. Widderick, Steven R. Walker and Andrew R. McLean pp. 262-265 17th Australasian Weeds Conference (2010)	CAWS
Crop competition
Canola competition for weed suppression Deirdre Lemerle, Peter Lockley, David Luckett and Hanwen Wu pp. 60-62 17th Australasian Weeds Conference (2010)	CAWS
Competitive effects of sorghum cultivars and densities on weed suppression Hanwen Wu, Steven R. Walker, Vikki A. Osten and GeoffRobinson pp. 483-486 16th Australasian Weeds Conference (2008)	CAWS
Weed suppression by crop competition in three crop species in Western Australia Abul Hashem, Catherine P.D. Borger and Glen Riethmuller pp. 63-66 17th Australasian Weeds Conference (2010)	CAWS
Progress in developing weed competitive wheat Gurjeet Gill and Michael Zerner, School of Agriculture, Food & Wine, University of Adelaide GRDC Grains Research Update paper 2010	GRDC
Double knock
Protecting glyphosate in summer fallows - mixes with pre-emergent herbicides and double knocking trials Jeff Werth, DEEDI GRDC Grains Research Update paper 2009	GRDC
Paraquat protects glyphosate in Aussie Double Knock September 2010	Paraquat.com
The double knock: How close can we go? Mingenew Irwin Group GRDC Research Project: MIG00002 Results: 2002	GRDC
The double knock - the best strategy for conserving glyphosate susceptibility? Paul B. Neve, Art Diggle, Stephen B. Powles WA Agribusiness Crop Updates, 2000	Department of Agriculture and Food, Western Australia
Remote sensing & herbicide application
Site specific weed management - Australian potential Site specific weed management - weed mapping and patch spraying by John Heap GRDC project DAS00088	SPAA
Weedseeker	CropOptics
Nozzle Selection for Weedseeker Units Bill Gordon GRDC GRains Research Update paper, August 2010	GRDC
Herbicide application: an important factor in herbicide efficacy Hossein Najafi pp. 36-39 17th Australasian Weeds Conference (2010)	CAWS
Inter- and intra-row herbicide application strategies for the control of annual ryegrass (Lolium rigidum) in wide-row faba beans (Vicia faba) Samuel G.L. Kleemann and Gurjeet S. Gill p. 496 16th Australasian Weeds Conference (2008)	CAWS
Other integrated weed management practices
Weed seed bank response to 12 years of different fertilisation systems Benny De Cauwer, Karel van den Berge, Mathias Cougnon, Robert Bulcke and Dirk Reheul p. 76 17th Australasian Weeds Conference (2010)	CAWS
Non-chemical methods of weed control: benefits and limitations Stephen R. Moss pp. 14-19 17th Australasian Weeds Conference (2010)	CAWS
Weed seed removal by ants in the crop growing areas of Western Australia David M. Minkey and Helen Spafford pp. 474-476 16th Australasian Weeds Conference (2008)	CAWS
Cover cropping as a weed management tool in southern Australian farming systems Hanwen Wu, Eric Koetz, De Li Liu, Min An, Deirdre Lemerle and Jim Pratley pp. 504-505 16th Australasian Weeds Conference (2008)	CAWS
Depleting weed seed banks within non-crop phases for the benefit of subsequent crops David G. Ferris pp. 477-479 16th Australasian Weeds Conference (2008)	CAWS
Integrating Weed Management and the Harrington Seed Destructor Michael Walsh, AHRI, University of Western Australia GRDC Grains Research Update paper 2010	GRDC
Integrated weed management - Crop topping in wheat Patrick Head, Landmark - Cummins Ag Services GRDC Grains Research Update paper 2010	GRDC
Managing herbicide resistance in Southern Australian farming systems using Roundup Ready® canola James E. Neilsen and Ian N. Taylor pp. 254-257 17th Australasian Weeds Conference (2010)	CAWS

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Herbicide resistance technical information

Title	Website Location
Managing Resistance Contains information on resistance management strategies for fungicides, herbicides and insecticides. The particular documents pertaining to herbicide resistance are as follows: All Herbicide Documents 2010 Herbicide Resistance Management Strategies.pdf - Last updated : 14 September 2010 2010 Herbicide Mode of Action Table.pdf Last updated : 14 September 2010 2010 Herbicide Resistant Weeds and IWMS List.pdf - Last updated : 14 September 20102007	CropLife Australia (formerly AVCARE)
Australian glyphosate sustainability working group Information on minimising the risk of glyphosate, what to do if you suspect glyphosate resistance, the Australian glyphosate resistance register and frequently asked questions on glyphosate resistance.	AGSWG
Herbicide resistance- New Herbicide Options Dr Peter Boutsalis GRDC Grains Research Update paper 2010	GRDC
Australian Herbicide Resistance Initiative (AHRI) AHRI conducts base scientific and applied research as well as development and extension on many aspects of herbicide resistance and its management in Australian cropping systems.	AHRI
WeedScience.com An international survey of herbicide resistant weeds	WeedScience.com
CSU herbicide resistance testing Information on CSU's herbicide resistance testing service including instructions for collecting seed and submitting samples and summary report of findings for samples submitted for resistance screening.	CSU
Plant Science Consulting The Quick-Test involves the testing of live weeds for herbicide resistance. The Quick-Test turn around time is 4-6 weeks - providing information about what herbicides are still effective much earlier than a seed test. The Quick-Test works for most grass weed species from seedling to late tillering. Website has details on how to sample and send plants.	Plant Science Consulting
Preventing herbicide resistance in 'at risk' weeds Herbicide resistance is an increasing threat facing both growers and agronomists across Australia´s northern grain region. Already 10 cropping weeds have been confirmed as herbicide resistant in various parts of this region, and more have been identified at risk of developing resistance, particularly to glyphosate.	DEEDI (Qld)
Strategies for optimising the life of Group A herbicides and patterns of herbicide resistance in wild oats and annual ryegrass. Tony Cook, Technical Specialist Weeds, NSW I&I, Tamworth GRDC Grains Research Update paper, February/March 2011	GRDC
Testing for glyphosate resistance What to do if glyphosate resistance is suspected.	DEEDI (Qld)
Using herbicides When all appropriate weed management options for the situation have been considered and a decision has been made to spray, there are still several important factors involved in using herbicides safely and effectively.	DEEDI (Qld)
WA Agribusiness Crop Updates 2009: Weeds Herbicide Resistance papers Papers in this section are 'Risk of glyphosate resistance in wide-row lupin cropping systems', 'More glyphosate-resistant annual ryegrass populations within Western Australia' and 'Western Australian farmers are sowing herbicide-resistant weed seed into their cropping paddocks!' 150kb pdf	Department of Agriculture and Food, Western Australia
WANTFA fact sheet on herbicide resistance (569kb pdf)	AHRI
Strategies for optimising the life of Group A herbicides and patterns of herbicide resistance in wild oats. Michael Widderick (DEEDI) & Tony Cook (I & I NSW) GRDC Grains Research Update paper, February/March 2011	GRDC
Prolonging glyphosate effectiveness on difficult to control summer weeds Jeff Werth, Michael Widderick, Vikki Osten and Steve Walker pp. 288-290 16th Australasian Weeds Conference (2008)	CAWS
Roundup Ready - Canola and Glyphosate Resistance Chris Preston, School of Agriculture, Food & Wine, University of Adelaide GRDC Grains Research Update paper, 2009	GRDC
Stewardship for Roundup Ready® canola - a focus on the components that reduce potential selection pressure for resistance to glyphosate James Neilsen, Monsanto Australia GRDC Grains Research Update paper, 2009	GRDC
Australian Herbicide Resistance Initiative (AHRI) Publications Working in a number of research areas, AHRI has produced a large amount of publications which are available to download. Topics include: Rapid Evolution of Herbicide Resistance by Low Herbicide Dosages Weed Science 2011 Sudheesh Manalil, Roberto Busi, Michael Renton, and Stephen B. Powles Reduced sensitivity to paraquat evolves under low glyphosate doses in Lolium Rigidum. Agronomy Sustainable Busi, R. and Powles, S.B. (2011) Genetic control of cytochrome P450 metabolism based herbicide resistance mechanism in Lolium rigidum Roberto Busi, Martin Vila-Aiub and Stephen B. Powles Towards large-scale prediction of Lolium rigidum emergence. I. Can climate be used to predict dormancy parameters? Weed Research, DOI: 10.1111/j.1365-3180.2010.00832.x Owen, M.J., Michael, P.J., Renton, M., Steadman, K.J. and Powles, S.B. (2011) Towards large-scale prediction of Lolium rigidum emergence II. correlation between dormancy and herbicide resistance levels suggest and impact of cropping sytems. Weed Research, DOI: 10.1111/j.1365.2010.00835.x. Owen, M.J., Michael, P.J., Renton, M., Steadman, K.J. and Powles, S.B. (2011) The Potential for Pyroxasulfone to Selectivity Control Resistant and Susceptible Rigid Ryegrass (Lolium Rigidum) Biotypes in Australian Grain Crop Production Systems. Weed Technology, 25, 30-37. Walsh, M.J., Fowler, T.M., Crowe, B., Ambe, T., and Powles, S.B. (2011) Glyphosate-Resistant Rigid Ryegrass (Lolium rigidum) Populations in the Western Australian Grain Belt. Weed Technology, 24, 44 - 49. Owen, M.J. and Powles, S.B. (2010) Herbicide-Resistant Weed Seeds Contaminate Grain Sown in the Western Australian Grain Belt. Weed Science, 58, 466-472. Michael, P.J., Owen, M.J. and Powles S.B. (2010) Evolution in action: Plants resistant to herbicides. Annual Review Plant Biology, 61, 317-347. Powles, S.B. and Yu, Q. (2010)	AHRI

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Management of specific problem weeds

Title	Website Location
Annual ryegrass
New mode of action herbicides to combat herbicide resistant annual ryegrass (Lolium rigidum) in Australian cereal production Peter Boutsalis, Gurjeet Gill and Christopher Preston pp. 278-280 17th Australasian Weeds Conference (2010)	CAWS
New pre-emergent herbicides for resistant ryegrass and brome grass Chris Preston, Peter Boutsalis and Gurjeet Gill, School of Agriculture, Food & Wine, University of Adelaide GRDC Grains Research Update paper, 2010	GRDC
Spread of herbicide resistance alleles in Lolium rigidum Gaud. (annual ryegrass) Jenna Malone, Peter Boutsalis and Christopher Preston pp. 258-261 17th Australasian Weeds Conference (2010)	CAWS
Proven enhancement in the knockdown control of seedling annual ryegrass (Lolium rigidum Gaudin) when using non-selective herbicides in tank mixtures with Boxer® Gold. GRDC Grains Research Update paper 2009	GRDC
Impact of management on glyphosate-resistant Lolium rigidum populations on farm Angela M. Wakelin and Christopher Preston pp. 80-82 16th Australasian Weeds Conference (2008)	CAWS
Annual ryegrass (Lolium rigidum Gaudin) resistance to glyphosate and other herbicides in crops and pasture seed in northern New South Wales Sandeep Narwal, Brian M. Sindel and Robin S. Jessop p. 97 16th Australasian Weeds Conference (2008)	CAWS
Annual ryegrass control affected by choice of management system Rex Stanton, James Pratley and David Hudson pp. 306-308 16th Australasian Weeds Conference (2008)	CAWS
BOXER® GOLD, a flexible new pre-emergent herbicide alternative for the control of annual ryegrass (Lolium rigidum Gaudin) and toad rush (Juncus bufonius L.) in wheat and barley Craig A. Ruchs pp. 291-293 16th Australasian Weeds Conference (2008)	CAWS
Efficacy of weed control practices for management of herbicide resistant annual ryegrass and wild radish Compiled by Alister Draper, WAHRI, March 2003 2.28 Mb, PDF	AHRI
The efficacy of Spray Seed® and Axial® herbicides on the narrow-leaved targets annual ryegrass (Lolium rigidum Gaudin) and oats (Avena spp.) when applied with a range of nozzle types and water volumes Jason W.G. Sabeeney and Garth R. Wickson pp. 294-296 16th Australasian Weeds Conference (2008)	CAWS
Barley grass and brome grass
Ecology and management of barley grass and brome grass in wheat in southern Australia Ben Fleet, Sam Kleemann, and Gurjeet Gill, School of Agriculture, Food & Wine, University of Adelaide GRDC Grains Research Update paper 2010	GRDC
A survey of southern New South Wales to determine the level of herbicide resistance in brome grass and barley grass populations John C. Broster, Eric A. Koetz and Hanwen Wu pp. 274-277 17th Australasian Weeds Conference (2010)	CAWS
New pre-emergent herbicides for resistant ryegrass and brome grass Chris Preston, Peter Boutsalis and Gurjeet Gill, School of Agriculture, Food & Wine, University of Adelaide GRDC Grains Research Update paper, 2010	GRDC
Barnyard grass and liverseed grass
Management of barnyard grass and liverseed grass Barnyard grass (Echinochloa spp.) and liverseed grass (Urochloa panicoides) are the most common summer grass weeds of cropping in southern Queensland and northern New South Wales (NSW). They are also present in central Queensland.	DEEDI (Qld)
Glyphosate resistance in awnless barnyard grass (Echinochloa colona (L.) Link) and its implications for Australian farming systems Andrew Storrie, Tony Cook, Peter Boutsalis, Drew Penberthy and Paul Moylan pp. 74-76 16th Australasian Weeds Conference (2008)	CAWS
Field testing of glyphosate-resistant awnless barnyard grass (Echinochloa colona) in northern NSW Tony Cook, Andrew Storrie, Paul Moylan and Bill Adams p. 93 16th Australasian Weeds Conference (2008)	CAWS
Feathertop Rhodes grass
Managing feathertop Rhodes grass - the CQ experience Vikki Osten, Agri-Science Queensland (DEEDI) and Graham Spackman, Spackman and Associates, Emerald GRDC Grains Research Update Paper, March 2011 (DAQ00105 & DAQ00116)	GRDC
Managing feathertop Rhodes grass, A best weed management guide This best weed management guide is an initiative of the GRDC funded projects, continued delivery of applied solutions to central Queensland weed issues and the central Queensland sustainable farming systems project (CQSFSP), and a taskforce of central Queensland growers, consultants and researchers. Feathertop Rhodes grass has become a major weed in farming systems on many central Queensland farms, as it has proven very difficult to control. The guide outlines what is currently known about managing this weed, and has been drawn from local research and industry experiences. It will be revised as more information becomes available from on-farm experience and research. (DAQ00105)	DEEDI (Qld)
Flaxleaf fleabane
Managing flaxleaf fleabane, a difficult-to-control weed in dryland cropping systems associated with zero-tillage Author: Hanwen Wu and Steve Walker File size & type: html, 50 kb	DEEDI (Qld)
Management of flaxleaf fleabane The key to getting on top of fleabane is to attack all parts of the weed lifecycle and keep the seedbank low, according to new research. Adopting an integrated weed management strategy that includes chemical and non-chemical tactics for controlling seedlings and preventing seed production on survivors will result in substantially fewer fleabane problems in the future.	DEEDI (Qld)
Spraying young flaxleaf fleabane is the key for best control. Walker, S, Widderick, M & Cook, A (2010) Australian Grain, March – April 2010, 4–6.	Australian Grain
Common sowthistle and flaxleaf fleabane. Understanding the weeds lifecycles for management strategies that work Michael Widderick GRDC Grains Research Update paper, 2009	GRDC
Flaxleaf fleabane - the next glyphosate resistant weed? Steven R. Walker and Geoffrey R. Robinson pp. 88-90 16th Australasian Weeds Conference (2008)	CAWS
Management of flaxleaf fleabane - workshop 2007 Edited and produced by Steve Walker, Jeff Werth and Michael Widderick. Proceedings of a workshop held at DPI&F, Toowoomba, 7 February 2007. PDF (624KB) \| Fleabane - workshop 2004 Edited and produced by Steve Walker, Michael Widderick and Hanwen Wu. Proceedings from a workshop held at DPI&F, Toowoomba, 25 February 2004. PDF (458KB)	CRC for Australian Weed Management
Small flower mallow (marshmallow)
Taming small flower mallow (marshmallow) John Stuchbery, JSA Independent GRDC Grains Research Update paper, 2010	GRDC
Sowthistle/milk thistle
Management of sowthistle Common sowthistle (Sonchus oleraceus), also known as milk thistle, is widespread across the grain-growing regions of Queensland and northern New South Wales. Sowthistle uses stored soil water during fallows and interferes with crop harvest, adding green matter to harvested grain.	DEEDI (Qld)
Genetic diversity among ALS-inhibiting herbicide resistant and susceptible populations of Sonchus oleraceus L. (sowthistle) in Australia Robin S. St John-Sweeting, Christopher Preston, Jeanine Baker, Steve Walker and Michael Widderick pp. 281-284 17th Australasian Weeds Conference (2010)	CAWS
Common sowthistle and flaxleaf fleabane. Understanding the weeds lifecycles for management strategies that work Michael Widderick GRDC Grains Research Update paper, 2009	GRDC
Wild oats
Strategies for optimising the life of Group A herbicides and patterns of herbicide resistance in wild oats. Michael Widderick (DEEDI) & Tony Cook (I & I NSW) GRDC Grains Research Update paper, February/March 2011	GRDC
Wild radish
Controlling seed-set in cruciferous weeds in pulses Aik Cheam (Department of Agriculture & Food, WA) and Jenny Barker (Communications Officer, Weeds CRC)	Department of Agriculture and Food, Western Australia
Controlling seed set of wild radish (Raphanus raphanistrum L.) with herbicide application during reproduction Aik Cheam and Siew Lee p. 312 17th Australasian Weeds Conference (2010)	CAWS
Wild radish and other cruciferous weeds Proceedings of a symposium held at The Department of Agriculture and Food Western Australia (DAFWA) South Perth 11–12 July 2006 Compiled by A. H. Cheam 1.49 Mb, PDF	CRC for Australian Weed Management
Efficacy of weed control practices for management of herbicide resistant annual ryegrass and wild radish Compiled by Alister Draper, WAHRI, March 2003 2.28 Mb, PDF	AHRI
Windmill grass
Windmill grass ( Chloris truncata) the current state of play Northern Region Grains Research Update paper, February 2011 Maurie Street, Grain Orana Alliance Inc.	GRDC
Control of windmill grass over the summer fallow increases wheat yield. Borger, Catherine P.D, Riethmuller, Glen and Hashem, Abul (2009). 17th Australasian Weeds Conference (2010)	CAWS
Herbicide options for the control of Chloris truncata (windmill grass). Stewart, V. (2002) , Western Australian Agribusiness Crop Updates 2002 p122	Department of Agriculture and Food, Western Australia

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IWM tools

Title	Website Location
RIM (Resistance Integrated Management program) RIM is a computer based decision support tool designed specifically for evaluating various ryegrass management options	AHRI
Weed Seed Wizard The Weed Seed Wizard is still being developed as an interactive, computer-based system which when operational, will provide growers with insights into the hidden weed seedbank and allows them to co-ordinate their long-term management of weeds. For further information contact Michael Renton at michael.renton@uwa.edu.au	Department of Agriculture and Food, Western Australia
Check your glyphosate resistance risk This on-line questionnaire helps you to assess the risk of glyphosate resistance developing in awnless barnyard grass populations in your paddock or farm. It may give good results for other summer grasses, but we cannot guarantee its accuracy for other types of weeds.	DEEDI (Qld)

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Weed identification

Title	Website Location
Weed identification & information Information on weeds by state - Not all crop weeds covered, but some useful pictures and information on those that are.	Weeds Australia
Department of Primary Industries NSW weed profiles Mainly environmental and rangeland weeds, but some weeds of cropping are included with good pictures and management information.	NSW DPI
Crop weeds of Australia by Sheldon Navie (CD Rom) Crop Weeds of Australia is an educational tool designed to assist in teaching and learning the principles and practice of plant identification. It has been developed to assist students in agriculture-related tertiary courses, but can also be used by secondary school and TAFE students. The key includes about 150 species of weeds commonly found in Australia's cropping systems and covers all of the major cropping areas from tropical to sub-tropical and temperate.	University of Qld
WEEDpak - weed identification and information guide WEEDpak - Weed identification and information guide - compiled to assist with the identification and management of common weeds of cotton. Colour photographs including weed growth stages are available for each weed. Weed biology and ecology information is also provided.	Cotton Catchment Communities CRC Website

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Herbicides & chemical companies

For labels, material safety datasheets (MSDS) and permits for registered products please refer to the APVMA website.

Links to several of the R & D based chemical company sites are given below.

Title	Website Location
Pre-emergent herbicides and seeding system interactions Barry Haskins, Hillston District Agronomist, NSW Industry & Investment GRDC Grains Research Update paper, February 2011	GRDC
Options for using more residual herbicides in northern no-till systems Tony Cook, Technical Specialist Weeds, NSW Industry & Investment, Tamworth GRDC Grains Research Update paper, February/March 2011	GRDC
Herbicide Efficacy in No-till Farming Systems in Southern NSW Greg Condon and Kirrily Condon, Grassroots Agronomy, Junee, NSW GRDC Grains Research Update paper, February 2011	GRDC
Achieving Good Pre-emergent Spray Results Bill Gordon GRDC Grains Research Update paper, February 2011	GRDC
Pyroxsulam for broad-spectrum weed control in wheat Greg S. Wells pp. 297-299 16th Australasian Weeds Conference (2008)	CAWS
Table of herbicides classified by primary mode of action - (pdf) part of the GRDC/Croplife Partnership	GRDC
Herbicide Mode of Action Table	CropLife Australia (formerly AVCARE)
WA Agribusiness Crop Updates 2009: Weeds Herbicides papers (402kb pdf) Papers in this section are: New pre−seeding grass selective herbicides—How well do they work in zero or no-tillage systems? (DAW00158) Velocity®—An alternate mode of action for the control of wild radish in cereals Herbicide tolerance of new barley varieties (DAW00134) Herbicide tolerance of Desi chickpea—influence of seeding depth and rainfall (DAW00134), Herbicide tolerance of new wheat varieties (DAW00134), PARAGON plus Bromicide 200: a triple mode-of-action approach to combating wild radish, Raphanus raphanistrum Interaction of glyphosate dose, annual ryegrass growth stage and environmental conditions on the performance of glyphosate for control of annual ryegrass (DAW00158), Metribuzin pre-sowing of lupins (DAW00123) Wild radish herbicides—you get what you pay for (DAW00123), Glyphosate—the consequences of cutting rates! (UWA00112), Mandelup has reasonable tolerance to atrazine	Department of Agriculture and Food, Western Australia
Registration for minor use chemicals for the grains industry The minor use project aims to secure access for the grain grower to suitable pest management solutions that are not currently covered by chemical manufacturers. The project aims to achieve regulatory approvals for needed minor uses through an ongoing consultation process involving all relevant grains industry stakeholders. (AKC00004)	GRDC
Two new cereal crop herbicides Alistair Crawford, Bayer CropScience GRDC Grains Research Update paper, 2010	GRDC
Syngenta Crop Protection Australia Product labels, MSDS and technical brochures. Also a ebook on Farm expert's guide to grass weed control Some areas of the website require registration for access.	Syngenta
Bayer CropScience Product labels, MSDS and technical brochures.	Bayer CropScience
Dow AgroSciences Product labels, MSDS and technical brochures	Dow AgroSciences
Nufarm Australia Product labels, MSDS and technical brochures.	Nufarm
Monsanto Australia Information on Monsanto's products including links through to the Roundup in Australia website.	Monsanto Australia
Sumitomo Chemical Australia Product labels, MSDS and technical brochures.	Sumitomo Chemical Australia
DuPont Australia Product labels, MSDS and technical brochures.	DuPont Australia

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Key weeds contacts

New South Wales

Tony Cook
NSW DPI, Tamworth
Ph: 02 6763 1250
tony.cook@industry.nsw.gov.au

Hanwen Wu
NSW DPI, Wagga Wagga
Ph: 02 6938 1602
hanwen.wu@industry.nsw.gov.au

Graham Charles
NSW DPI, Narrabri
Ph: 02 6799 1524
graham.charles@industry.nsw.gov.au

Queensland

Vikki Osten
DEEDI, Emerald
Ph: 07 4983 7406
Vikki.Osten@deedi.qld.gov.au

Steve Walker
Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Toowoomba
Ph: 07 4639 8838
s.walker11@uq.edu.au

Jeff Werth
DEEDI, Toowoomba
Ph: 07 4639 8851
jeff.werth@deedi.qld.gov.au

Michael Widderick
DEEDI, Toowoomba
Ph: 07 4639 8856
michael.widderick@deedi.qld.gov.au

Western Australia

Alex Douglas
Department of Agriculture and Food, Western Australia
Ph: 08 9821 3246
alex.douglas@agric.wa.gov.au

Abul Hashem,
Department of Agriculture and Food, Western Australia
Ph: 08 9690 2000
abul.hashem@agric.wa.gov.au

Neree Martinez
Australian Herbicide Resistance Initiative (AHRI)
Ph: 08 6488 1512
neree.martinez@uwa.edu.au

Peter Newman
Department of Agriculture and Food, Western Australia
Ph: 08 9956 8563
peter.newman@agric.wa.gov.au

Mechelle Owen
Australian Herbicide Resistance Initiative (AHRI)
Ph: 08 6488 1512
Mechelle.owen@uwa.edu.au

Sally Peltzer
Department of Agriculture and Food, Western Australia
Ph: 08 9892 8504
sally.peltzer@agric.wa.gov.au

Stephen Powles,
Australian Herbicide Resistance Initiative (AHRI)
Ph: 08 6488 7833
stephen.powles@uwa.edu.au

Andrew Storrie
Agronomo
Ph: 0428 423 577
andrew@agronomo.com.au

Michael Walsh
Australian Herbicide Resistance Initiative (AHRI)
Ph: 08 6488 7872
Michael.walsh@uwa.edu.au

South Australia

Chris Preston/
University of Adelaide
Ph:08 8303 7237
christopher.preston@adelaide.edu.au

Gurjeet Gill
University of Adelaide
Ph: 08 8303 7744
gurjeet.gill@adelaide.edu.au

Key contacts for resistance testing

John Broster
CSU Wagga Wagga
Ph: 02 6933 4001
jbroster@csu.edu.au

Peter Boutsalis
The University of Adelaide & Plant Science Consulting
Ph: 0400 664 460
peter.boutsalis@adelaide.edu.au, plantscience@ozemail.com.au

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