AWC proceedings:   previous

21st Australasian Weeds Conference (2018)

"Weed Biosecurity - Protecting our Future"

Novotel Sydney Manly Pacific, Sydney, New South Wales.
9-13 September 2018.
Peer-reviewed proceedings edited by Stephen Johnson, Leslie Weston, Hanwen Wu and Bruce Auld.
Published by The Weed Society of New South Wales Inc.
ISBN 978-0-9954159-1-1

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Plenary presentations

Herbicide resistance in Canada: Biggest threats, best management, and lessons learnt
Hugh J. Beckie   pp. 1-3
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National priority list of exotic environmental pests and diseases: an update
Sandra Parsons, Jessica Evans, Bo Raphael and Marwan El Hassan   p. 4
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Herbicide resistance

Next generation testing of herbicide resistance: Rapid detection, multiple herbicides, a single assay
Aaron L. Preston and James E. Pratley   pp. 5-9
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Multiple herbicide resistance in winter grass (Poa annua) in Australia
Peter Boutsalis, Jenna Malone and Christopher Preston   p. 10
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Eradication or mitigation? How to manage patches of glyphosate resistant Echinochloa colona L.
Jeff A. Werth, David F. Thornby, Michelle D. Keenan, James P. Hereward and Bhagirath S. Chauhan   p. 11
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Control of thiocarbamate resistant annual ryegrass (Lolium rigidum) in lentils (Lens culinaris) in southern Australia
David J. Brunton, Peter Boutsalis, Gurjeet Gill and Christopher Preston   pp. 12-14
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Glyphosate resistant common sowthistle (Sonchus oleraceus L.)
Jenna M. Malone, Tony Cook, Mahima Krishnan and Christopher Preston   p. 15
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Extent of herbicide resistant common sowthistle (Sonchus oleraceus) in southern Australia
Alicia Blyth Merriam, Peter Boutsalis, Jenna Malone, Gurjeet Gill and Christopher Preston   pp. 16-19
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Genome sequencing of glyphosate resistant fleabane (Conyza bonariensis) and sowthistle (Sonchus oleraceus)
James P. Hereward, Jeff A. Werth, David F. Thornby, Michelle Keenan, Bhagirath Singh Chauhan and Gimme H. Walter   p. 20
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Mechanisms of resistance to penoxsulam and quinclorac in Echinochloa crus-galli
Yongfeng Li, Xia Yang, Mingchao Dong, Zichang Zhang, Tao Gu, Jingjing Cao and Qin Yu   p. 21
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Understanding the mechanisms of 2,4-D resistance in Sonchus oleraceus (common sowthistle)
Mahima Krishnan, Tijana Petrovic, Alicia Merriam, Geetha Velappan and Christopher Preston   p. 22
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BAS684H a new tool for selective control of multi-resistant ryegrass
Roberto Busi and Stephen Powles   p. 23
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Target-site and metabolic resistance mechanisms to dinitroaniline herbicides in a Lolium rigidum population
Jinyi Chen, Heping Han, Danica Goggin, Qin Yu and Stephen Powles   p. 24
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A novel psbA mutation (Phe-274-Val) confers resistance to PSII herbicides in wild radish (Raphanus raphanistrum)
Huan Lu, Qin Yu, Heping Han, Mechelle J. Owen and Stephen B. Powles   p. 25
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Metabolic herbicide resistance gene discovery in wild oat (Avena fatua)
Qiong Peng, Qin Yu, Heping Han, Lianyang Bai and Stephen Powles   p. 26
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Weeds of crops and pastures - ecology and biology

Abutilon theophrasti - its biology and management in New Zealand
Trevor K. James and Heidi M. Pene   pp. 27-31
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Germination ecology of two Australian populations of African turnip weed (Sisymbrium thellungii L.)
Gulshan Mahajan, Amar Matloob, Michael Walsh and Bhagirath S. Chauhan   p. 32
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Response of common sowthistle, Sonchus oleraceus L. to simulated herbivory
Nagalingam Kumaran, Michelle A. Rafter, Kylie B. Ireland, Gavin Hunter, Louise Morin and S. Raghu   p. 33
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Allelopathic potential of pasture legume species and selected winter crops on barnyard grass and rice
Jhoana Opena, Hanwen Wu, Sergio Moroni, Deirdre Lemerle and James Pratley   p. 34
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Inter-specific variations in seed germination biology and seedling emergence of bladder ketmia (Hibiscus spp.)
Md Asaduzzaman and Eric Koetz   p. 35
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Predicting the mass emergence of Vulpia bromoides
Claire A. Dowsett, Christopher E. Buddenhagen, Richard J. Chynoweth and Trevor K. James   pp. 36-41
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Fact or Fiction: Do glyphosate resistant cropping systems reduce crop or soil health?
Martin M. Williams II, Stephen O. Duke, Agnes M. Rimando, Jude E. Maul, Krishna N. Reddy and James V. Cizdziel   p. 42
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Allelopathic interference of annual ryegrass (Lolium rigidum) on lucerne nodulation
H.M. Zubair, J.E. Pratley, G.A. Sandral, A.W. Humphries, S.G. Nielsen and A. Price   pp. 43-46
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Seed germination ecology of Sesbania cannibana (Retz.) Poir.
Nadeem Iqbal, Sudeesh Manalil, Bhagirath S. Chauhan and Steve Adkins   p. 47
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Weeds of crops and pastures - strategic management

Developing a framework to prioritise plant biosecurity threats to New Zealand's dairy industry
David Hodges, Trevor James and Petra Muellner   p. 48
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Exploring and extending integrated weed management opportunities in the Australian vegetable industry
Michael Coleman, Christine Fyfe, Sita Tiwari Pokhrel, Graham Marshall, Brian Sindel and Paul Kristiansen   pp. 49-53
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Developing new options for weed control in Australian cotton systems
James Neilsen, Meredith Conaty and Kate Lang   p. 54
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An integrated approach to managing Noogoora burr in maize crops
Shane R. Hona, Trevor K. James and Andrew Blayney   pp. 55-59
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Building capacity to manage weeds

From little things big things grow - A review of behaviour change initiatives for weeds management in NSW
Birgitte Verbeek, Elissa van Oosterhout and Wendy Gibney   pp. 60-63
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Building capacity for weed management in the Lao PDR
Deirdre Lemerle, John Burley, Sarah Hain, Brendon Bangma, Nicholas Pain, Sengphet Phantavong, Kylie Ireland, Madaline Healey and Lester Burgess   pp. 64-67
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Floating Landcare: Bringing a bit of WOW to weedy hotspots on the Hawkesbury Estuary and NSW Central Coast waterways
Rebecca Mooy and Tegan Burton   p. 68
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Using the Atlas of Living Australia to support weed biological control
Greg Lefoe, Raelene Kwong and Kerinne Harvey   p. 69
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Practical best practice management of opuntioid cacti - from desk to dirt
Shauna Potter, Matthew R. Sheehan, Kate Blood and Kay Bailey   p. 70
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Strategy - assessing weed risk

Introducing the Plant Sure Ornamental Plant Decision Support Tool
Michelle Leishman, Nola Hancock, Victoria Graham, Vanessa Adams, Tim Maher and Anthony Manea   p. 71
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Refining the environmental weed risk assessment for non-indigenous plants which may have agricultural potential
Christine J. Munday, Geoff Moore, Rachel Whitsed, Margaret Byrne and Clinton Revell   pp. 72-76
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WRASP: A spatial weed risk assessment tool reveals critical variationsin weed risks
Darren J. Kriticos, Josef Beautrais and Mike B. Dodd   pp. 77-81
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A national weed management decision-support system
Graeme W. Bourdôt, Darren J. Kriticos and Michael B. Dodd   pp. 82-85
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Futures in risk assessment: Challenges in preventing and mitigating weed threats
Stephen B. Johnson, Belinda Mitterdorfer, Dorjee, Tony Buckmaster and Paul O. Downey   p. 86
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Strategic planning

Let's get strategic: Weed management for conservation in Western Australia
Kellie Passeretto   pp. 87-90
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Buffel grass in South Australia: Progress and future directions
Ross Meffin, Ellen Ryan-Colton, John L. Read, Troy Bowman and Michaela Heinson   pp. 91-95
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An ounce of prevention: An accreditation scheme for ornamental plant industries
Hillary Cherry, Stephen B. Johnson and Des Boorman   pp. 96-99
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A new approach to managing invasive pests at the local government level
Craig Magnussen   p. 100
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Heritage or threat, conserve or destroy? The heritage plant management dilemma in protected landscapes
David C. Havell and Angela L. Scott   p. 101
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The changing weedscape: Policy and management implications of unknown knowns
Paul O. Downey and Stephen B. Johnson   p. 102
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Strategic management applications

Lake Benmore islands wilding conifer control
Pete Caldwell   p. 103
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Managing WoNS for better drinking water
Dennis J. Gannaway and Tim Odgers   pp. 104-106
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Containment of Western Cape bridal creeper in peri-urban Adelaide - an eleven-year review
Henry Rutherford, Michaela Heinson, Susan Ivory and Phil Elson   p. 107
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Weed eradication

The research behind New Zealand's aquatic weed eradication programmes
Paul D. Champion and Deborah E. Hofstra   p. 108
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10 years after Victoria's major Mexican feather grass incursion: Assessing eradication methods and germination behaviour
Nicholas P. Moran, Alexei D. Rowles and Angela B. Constantine   pp. 109-114
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Pushing 37 weed species towards extinction in Queensland
Steve Csurhes   pp. 115-118
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The effects of cyclones on a tropical weed eradication program
Simon J. Brooks and Mick Jeffery   pp. 119-123
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The eradication of weed species in New Zealand’s National Interest Pest Responses Programme
Frances G. Velvin   p. 124
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Plenary session: New technologies - using remote detection to improve weed biosecurity

Machine vision systems for robotic weed sensing in field environments
Cheryl L. McCarthy, Steven R. Rees and Craig P. Baillie   p. 125
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Needle in a haystack - detecting hawkweeds using drones
Mark Hamilton, Robert Matthews and Jo Caldwell   pp. 126-130
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Multispectral imagery and weed biocontrol: A useful pairing?
A.J. McConnachie, P. Jones, R. Shilpakar and P. Dawson   p. 131
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Grains research and development corporation - GWAC symposium

What's over the horizon for weed management in Australia - science outcomes to benefit Australian growers from the Bayer/GRDC partnership
Marco Busch   p. 132
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Research priorities for weed suppression by crops in Australia
Michael Widderick, Deirdre Lemerle, Cameron Taylor, Chris Johansen, Abul Hashem, Vikki Osten, Tony Cook, Kerry Bell and Andrew Storrie   pp. 133-136
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Managing clethodim-resistant annual ryegrass (Lolium rigidum) in canola with herbicides and competition
Samuel G.L. Kleemann, Gurjeet S. Gill and Christopher Preston   p. 137
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Reduction in sowthistle biomass and seed production through manipulation of pulse population and row spacing
Adam B. McKiernan, Greg Harvey, Linda Heuke, Michael Walsh and Michael Widderick   p. 138
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Glyphosate and 2,4-D amine resistance in common sowthistle (Sonchus oleraceus) and fleabane (Conyza bonariensis) in the Northern Grain growing region of Australia
Adam Jalaludin, Michael Widderick, John Broster and Michael Walsh   p. 139
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Microwave: A novel approach to tackle herbicide resistance in no-till farming systems
Muhammad J. Khan, Graham I. Brodie and Dorin Gupta   pp. 140-143
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Comparing the weed seed collection efficacy of stripper and draper type harvester fronts during harvest
Annie Rayner, John Broster, Alison Chambers and Michael Walsh   p. 144
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The extent of herbicide resistance in ryegrass and wild oats in New South Wales and Queensland
John C. Broster, Allison J Chambers, Adam Jalaludin, Michael J. Widderick and Michael J. Walsh   p. 145
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Metabolic profiling for benzoxazinoids in weed suppressive and early vigour wheat genotypes
James M. Mwendwa, Paul A. Weston, Inge Fomsgaard, Bente B. Laursen, William B. Brown, Hanwen Wu, Jane C. Quinn, Jeffrey D. Weidenhamer and Leslie A. Weston   p. 146
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Opportunities for weed management using virtual fencing technology
Rick Llewellyn, Danila Marini, Marta Monjardino, Sue Belson, Jackie Ouzman and Caroline Lee   p. 147
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Ecology of threehorn bedstraw (Galium tricornutum): Implications for management and harvest weed seed control
Samuel G.L. Kleemann and Gurjeet S. Gill   pp. 148-152
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Lime improves control of wild radish and annual ryegrass in acid soils of Western Australia
Abul Hashem and Catherine Borger   pp. 153-156
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Developing biological control options for the integrated management of Conyza bonariensis and Sonchus oleraceus
L. Morin, K. Nagalingam, K.B. Ireland, V. Lesieur, M. Ollivier, M. Rafter, G.C. Hunter, T. Thomann, M. Jourdan, A. Sheppard, J.F. Martin, M.S. Tixier, M.D. Vitorino and S. Raghu   p. 157
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Recruitment and fecundity of annual ryegrass, great brome grass, barley grass, doublegee and sowthistle
Catherine P.D. Borger and Abul Hashem   pp. 158-162
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Impact of chaff lining/tramlining on the seed persistence and emergence of weeds
Annie van der Meulen, Annie Rayner, Michael Widderick, Adam Jalaludin, John Broster, Alison Chambers, Linda Heuke, Shona Robilliard and Michael Walsh   p. 163
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Newly-developed RIM models for integrated management of brome and barley grass
Marta Monjardino and Rick Llewellyn   pp. 164-168
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Technical manuals and training on the soil behaviour of pre-emergent herbicides and modes of action (MOA's) of post-emergent herbicides
Mark Congreve and John Cameron   pp. 169-174
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New surveillance technologies

How distinguishable are hawkweeds from co-occurring vegetation species in the eye of hyperspectral sensor?
Hsing-Chung Chang, Kerrie Tomkins, Rene Heim, Will Farebrother, Chad Ajamian, Mark Hamilton and Hillary Cherry   p. 175
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Use of GIS technology in weed management
Paras Acharya   p. 176
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Unmanned aerial vehicles used to control giant reed (Arundo donax L.)
Philip Milling   pp. 177-180
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Collector app mapping to assess effectiveness of invasive grass control
Steve Taylor, Jenny Conolly and Renee Brawata   pp. 181-186
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Weed surveillance using search theory
Oscar Cacho, Dane Panetta, Hillary Cherry, Susie Hester, Sue Bower and Hank Bower   pp. 187-191
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Finding and mapping weeds - mapping, surveillance and control

The state (and territory!) of data collection on national priority weeds
Bo Raphael, Jessica Evans, Katherina Ng, Luke Maloney and Sandra Parsons   p. 192
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The Victorian Weed Spotters: Recruitment and training of citizen scientists
Zachariah Munakamwe, Angela Constantine and Catherine McInerney   pp. 193-196
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Weeds at the early stage of invasion: pilot project evaluation
Kate Blood and Bec James   pp. 197-199
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First incursion, weed policy implementation and eradication of Boerhavia erecta (Nyctaginaceae) in northern Australia
John O. Westaway, Bert Lukitsch and Roni Opden   p. 200
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Iris pseudacorus L. (Irideae, Iridaceae) in South Africa: Feasibility of eradication
Thulisile P. Jaca, Reshnee Lalla and Menzi Nxumalo   p. 201
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Frogbit (Limnobium laevigatum) detection and eradication in New South Wales
Charlie Mifsud and Terry Inkson   p. 202
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Biological control

Australian weed biocontrol: A look at the past, present and future
Kerinne Harvey and Andrew McConnachie   p. 203
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Impacts of a pre-dispersal seed predator on achene production in the aquatic macrophyte, Sagittaria platyphylla
Raelene M. Kwong, Jean Louis Sagliocco, Nathan E. Harms and Julie G. Nachtrieb   pp. 204-210
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Project summary of biocontrol agent Eueupithecia cisplatensis for Parkinsonia aculeata in Queensland by Queensland DAF
Kelli Pukallus, Joshua Nicholls, Centaine Ferris and Judy Clark   pp. 211-214
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Progress towards biological control of bellyache bush and prickly acacia
Dianne B.J. Taylor, Boyang Shi, Jason Callander and Kunjithapatham Dhileepan   p. 215
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Overwintering habitat and the survival of the biocontrol beetle, Cassida rubiginosa
Michael G. Cripps, Sarah D. Jackman, Chikako van Koten, Cor J. Vink and Michael B. Dodd   pp. 216-219
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Molecular analysis of ecological interactions for optimising biocontrol of the invasive weed Sonchus oleraceus L. (Asteraceae) in Australia
M. Ollivier, V. Lesieur, M. Jourdan, T. Thomann, S. Raghu, L. Morin, A. Sheppard, M.S. Tixier and J.F. Martin   p. 220
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Biological control of Sonchus oleraceus: what is known, what is new and what is still missing?
V. Lesieur, T. Thomann, M. Jourdan, M. Ollivier, A. Sheppard, J.F. Martin, M.S. Tixier, L. Morin and S. Raghu   p. 221
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Matching expectations and reality: Potential impact of biological control on flaxleaf fleabane
Michelle A. Rafter, Kerri Moore, Nagalingam Kumaran, Gavin Hunter, Kylie B. Ireland, Louise Morin and S. Raghu   p. 222
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Genomics, lineages and phenotypes: Investigations into the stability of the Puccinia chondrillina-Chondrilla juncea pathosystem in Australia
Gavin C. Hunter, Kylie B. Ireland, Mireille Jourdan, Jim Cullen and Louise Morin   p. 223
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Boxthorn rust (Puccinia rapipes): a potential biological control agent of African boxthorn (Lycium ferrocissimum)
Kylie B. Ireland, Gavin Hunter, Alan Wood and Louise Morin   p. 224
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Water influences the impact of a native parasitic plant ('snotty gobble') on gorse
Robert M. Cirocco, José M. Facelli and Jennifer R. Watling   p. 225
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Promising new biological control agents for Queensland
Elizabeth L. Snow, Peter Jones, Natasha Riding and Michael Day   pp. 226-229
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Biological control of mistflower (Ageratina riparia) with a fungal agent facilitates native vegetation regeneration
Ben Gooden, Louise Morin, Andrew White, Melissa Piper, Jamie Fagg, Kris French, Alice Yeates and Shon Schooler   p. 230
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Biocontrol post-release: could earlier failures lead to overlooked successes?
Iain D. Paterson, Zezethu Mnqeta and Paul O. Downey   p. 231
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Biocontrol research for environmental weeds management in NSW
Louise Morin, Andrew McConnachie and Peter Turner   p. 232
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Weed biocontrol in temperate Australia - a new manual for best management practice
Paul R. Sullivan   p. 233
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Plenary session: Weed futures

Drivers of change and adaptation tools for reducing the impact of invasive plants under a changing climate
Michelle Leishman   p. 234
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Future weeds RD&E investment under a collaborative national biosecurity approach
Andreas Glanznig and Richard J. Price   p. 235
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Chemistry innovations

Trifludimoxazin: A new PPO inhibitor that controls PPO resistant weed biotypes
G.R. Armel, I. Francis, R. Nielson, M. Witschel and R. Liebl   p. 236
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Trifludimoxazin: A new novel herbicide for grass and broadleaf weed control in Australian winter cereals
Ian Francis, Marco Montagna, Russell Ison and Gavin Heard   p. 237
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Cinmethylin - a new herbicide for cereals: Mode of action and biokinetic properties
Ruth Campe, Eva Hollenbach, Lara Kämmerer, Janneke Hendriks, Wolfgang Höffken, Helmut Kraus, Jens Lerchl, Thomas Mietzner, Matthias Witschel, Johannes Hutzler, Laurent Picard and Klaus Kreuz   p. 238
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Agixa herbicide - a new treatment for selective weed control in drill-sown rice
Gregory S. Wells, Malcolm Taylor and Colin Plater   pp. 239-241
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Innovations for weed management - From new herbicide modes of action to novel technologies for weed management
Stefan Tresch   p. 242
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Topramezone (Frequency Herbicide), a new flexible tool for weed control in winter cereals across Australia
Ian Francis, Marco Montagna and Russell Ison   p. 243
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A new mode of action (MOA) pre-emergence herbicide for the control of annual ryegrass (Lolium rigidum Gaud.) and other monocotyledon weeds in cereals in Australia
Ian Francis, Marco Montagna, Russell Ison and Gavin Heard   p. 244
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ForageMax herbicide - a new treatment for selective weed control in graze and grain canola
Gregory S. Wells and Colin Plater   pp. 245-246
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Encapsulated dry herbicides: A novel approach for control of trees
Ken C. Goulter, Victor J. Galea and Peter Riikonen   pp. 247-250
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Innovative chemistry application

Stopping the invasion of Persicaria chinensis (Chinese knotweed) - a herbicide solution
Kim Hignell   pp. 251-256
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Drive-by shooting: Increasing weed treatment speeds using a skattergun
Nathan March and Wayne Vogler   pp. 257-260
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A magic bullet for the Northern Australian neem nightmare?
Jessica Miller and Louise Beames   pp. 261-264
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Herbicidal control of environmental weeds from sub-Antarctic Macquarie Island
Brian M. Sindel, Waqas Zahid, Paul E. Kristiansen, Susan C. Wilson, Justine D. Shaw and Laura K. Williams   p. 265
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Community engagement and environmental weed management

More than a Chore: The pleasures of weed management in high amenity rural landscapes
Nicholas Gill   p. 266
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Buffel grass management in Indigenous communities
Troy A.J. Bowman   pp. 267-270
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Restoring coastal ecosystems for the Great Barrier Reef and the RAMSAR wetlands of Bowling Green Bay
Scott Fry   p. 271
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Managing bitou and boneseed on Long Reef Headland
Jillian Macintyre   p. 272
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Weed management is not quite 'Bush Regeneration' - An opinion
Peter Harper and Nimal Chandrasena   pp. 273-279
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Weeds in natural systems (wins) how do weeds win?

Effects of soil nitrogen reduction on competition between Phragmites australis and Melaleuca ericifolia
Md N. Uddin, Randall W. Robinson and Takashi Asaeda   p. 280
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The invasive Parthenium hysterophorus L. has limited impact on soil chemistry and enzyme activities but influences above and below ground biodiversity
Olusegun O. Osunkoya, Boyang Shi, Kerri Moore and Kunjithapatham Dhileepan   pp. 281-284
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Weeds in Natural Systems (WINS): Weighing up the importance of different invasion mechanisms
Kristine French   p. 285
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CAWS interactive forum

Global learnings for research impact in weed management in Australia
Rachel Melland   pp. 286-289
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Weeds of crops and pastures - applied management

Emergence patterns and herbicide control of prickly lettuce (Lactuca serriola L.)
Hanwen Wu, Adam Shephard and Michael Hopwood   pp. 290-294
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The effect of integrating defoliation with herbicides on barley grass survival in a legume pasture
Jane E. Kelly, William Brown, John Broster, Paul A. Weston, Wayne Robinson, Jane Quinn and Leslie A. Weston   pp. 295-299
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Performance of INTERCOM for predicting rice-barnyard grass interference in dry seeded rice systems
Tahir Hussain Awan and Bhagirath Singh Chauhan   p. 300
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Effect of high temperature and soil moisture on seed germination of four summer weeds
Sudheesh Manalil and Bhagirath S. Chauhan   p. 301
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Genetics improving weed management

Specificity of LAMP for genetic diagnostics of Chilean needle grass and serrated tussock
David Gopurenko, Aisuo Wang and Hanwen Wu   pp. 302-306
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Molecular identification of Solanum elaeagnifolium in Australia using DNA barcoding, a solution for better management
Xiaocheng Zhu, David Gopurenko, Laurence A.R. Haegi and Hanwen Wu   pp. 307-311
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Identification of eight Panicum species in Riverina region of NSW using DNA sequence analysis
Yuchi Chen, Xiaocheng Zhu, David E. Albrecht, Panayiotis Loukopoulos, Jane C. Quinn and Leslie A. Weston   pp. 312-317
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Screening of gene regions for genetic diversity in global parthenium weed (Parthenium hysterophorus L.) populations
Ali A. Bajwa, Xiaocheng Zhu, Bhagirath S. Chauhan, Steve W. Adkins and Leslie A. Weston   pp. 318-321
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Thinking outside the square

A conversation starter: Standardising terminology and definitions for weeds status in Australia -What do you think?
Chris Brodie, Peter Lang and Michelle Waycott   p. 322
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The challenges of herbicide resistance in non-agricultural weed management systems
Andrew Storrie   pp. 323-326
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Using detection dogs to assist weed eradication in conservation areas
Hillary Cherry   p. 327
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Poster presentations

Evolved resistance to glyphosate in barley grass (Hordeum spp.) in South Australia
Patricia Adu-Yeboah, Jenna Malone, Benjamin Fleet, Samuel Kleeman, Gurjeet Gill and Christopher Preston   p. 328
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Longevity of blady grass (Imperata cylindrica) seeds
Husham A. Alqaderi, Brian M. Sindel, Paul E. Kristiansen and Ralph D.B. Whalley   pp. 329-332
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Efficacy of some selective herbicides against broad leaved weeds of wheat crop grown under moisture deficit conditions of Pakistan
Muhammad Asad, Muhammad Mudassar, Zahid Mahmood and Muhammad Rasheed   p. 333
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Effect of parthenium weed on maize yield at different competition durations in Ethiopia
Ali A. Bajwa, Tamado Tana, Bhagirath S. Chauhan and Steve W. Adkins   pp. 334-337
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The effects of parthenium weed density on yield attributes and yield of maize in Ethiopia
Ali A. Bajwa, Tamado Tana, Bhagirath S. Chauhan and Steve W. Adkins   pp. 338-340
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Emergence of great brome grass and barley grass
Catherine P.D. Borger and Abul Hashem   pp. 341-344
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Management of Chromolaena odorata in the Douglas Shire
Simon J. Brooks and Peter Logan   pp. 345-349
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Progress in the eradication of Mikania micrantha from Australia
Simon J. Brooks and Mick Jeffery   pp. 350-353
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The effects of burial depth and water stress on Melastome weed seeds
Simon J. Brooks, Rose K. Easton and Kirsty L. Gough   pp. 354-358
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The NSW Biological Control Taskforce - collaborating to maintain a functional biocontrol agent delivery pipeline
Troy R.F. Brown   p. 359
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Geospatial assessment to predict potential African olive (Olea europaea spp. cuspidata) infestation sites in remnant vegetation communities
Doug Campbell   p. 360
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Causing a stink: Paederia foetida found on mainland Australia
Joel Daniels and Stephen B. Johnson   p. 361
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Effect of nitrogen rate and weed control treatments on quantitative and qualitative yield of sugar beet
Mohammad A. Dastorani and Mohammad Armin   p. 362
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The impact of two biological control agents, Passalora ageratinae and Baeodromus eupatorii, on Ageratina adenophora (crofton weed): synergism or antagonism?
Juliette Fontaine, Gavin C. Hunter and Louise Morin   p. 363
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Seed-set reduction of milk thistle (Sonchus oleraceus L.), wild turnip (Rapistrum rugosum L.) and flaxleaf fleabane (Conyza bonariensis L.) following a crop topping application of saflufenacil (Sharpen WG Herbicide) in cereals
Ian Francis, Marco Montagna, Russell Ison and Adam Perfrement   p. 364
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Integrated weed management cotton (Gossypium hirsutum L.) in conventional and ultra narrow row spacing system
Ali R. Ghavi and Mohammad Armin   p. 365
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A useful in vitro bioassay for evaluation of weed suppression provided by cover crop residues
Saliya Gurusinghe, Sajid Latif, William Brown, Paul Weston and Leslie A Weston   p. 366
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Egeria (Egeria densa Planch.) presents an increasing threat to Australian waterways
Peter Harper and Nimal Chandrasena   p. 367
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Vacuum weeding: the removal of wild oats (Avena ludoviciana) and annual ryegrass (Lolium rigidum) seed from wheat stubble
Linda M. Heuke, Shona L. Robilliard, Asad Shabbir and Michael J. Walsh   p. 368
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Host testing and taxonomic clarification of a potential fungal biological control agent of sea spurge (Euphorbia paralias)
Gavin C. Hunter, John Lester, Isabel Zeil Rolfe, Mireille Jourdan, John K. Scott and Louise Morin   p. 369
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Evaluation of herbicide mixtures and manual weed control methods in maize (Zea mays L.) production
E.O. Imoloame   p. 370
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African boxthorn stakeholder survey: Impacts and management goals for biocontrol
Kylie B. Ireland, Michelle Rafter, Nagalingam Kumaran, S. Raghu and Louise Morin   p. 371
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Early invader Opuntioid cacti in Victoria
Bec James and Kate Blood   p. 372
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Using detection dogs as part of an integrated weed management strategy - A local government perspective
Melanie Kelly and Nicole Gill   p. 373
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Triticale competitive ability with annual ryegrass (Lolium rigidum Gaudin) as affected by variety, sowing rate and row spacing
Husam S.M. Khalaf, Brian M. Sindel, Paul E. Kristiansen, Robin S. Jessop and Craig Birchall   pp. 374-377
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Effect of moisture stress on morphological and physiological attributes of Amaranthus viridis and A. retroflexus
Asad M. Khan, James P. Hereward, Jeff A. Werth, Gimme H. Walter and Bhagirath Singh Chauhan   p. 378
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Weed suppressive potential of selected pasture legumes against annual weeds in southeastern Australia
Sajid Latif, Paul A. Weston, John W. Piltz, Saliya Gurusinghe, William B. Brown, Jane C. Quinn and Leslie A Weston   pp. 379-382
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Angled onion, Allium triquetrum L., a beautiful flower with a bitter taste
V. Lesieur, M. Jourdan, T. Thomann, A. Sheppard, J.F. Martin, M.S. Tixier, L. Morin, S. Raghu and B. Gooden   p. 383
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Diversity and extent of mutations endowing resistance to AHAS-inhibiting herbicides in Sisymbrium orientale in Australia
Weihua Long, Peter Boutsalis, Mahima Krishnan, Jenna M. Malone and Christopher Preston   p. 384
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Growth responses of two Australian biotypes of common sowthistle (Sonchus oleraceus L.) to varied soil moisture regimes
Gulshan Mahajan, Michael Walsh and Bhagirath S. Chauhan   p. 385
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Phalaris minor resistance is increasing and solutions urgently needed to farmers of Punjab and Haryana
Malwinder Singh Malhi and Pavitarpal Singh Pangli   p. 386
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Allelopathic activity of Hosta alismifolia against Lactuca sativa L.
Mohammad Shamim Hasan Mandal   p. 387
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The role of biochar pyrolysis temperature on hexazinone sorption-desorption in soil using the batch-equilibrium method
Kassio F. Mendes, Gustavo M. Chitolina, Mayara C. Arruda, Leonardo V. Junqueira, Cássio S. Almeida and Valdemar L. Tonisielo   p. 388
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Could Phytophtora species associated with declining populations of invasive European blackberry be used for biological control?
Louise Morin, John Lester, Patrick Gleeson, Treena I. Burgess, Giles E. St. J. Hardy and John K. Scott   p. 389
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Germination ecology of resistant and susceptible populations of barnyard grass (Echinochloa colona (L.) Link.) collected from Queensland
Navneet Kaur Mutti, Gulshan Mahajan and Bhagirath S. Chauhan   p. 390
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Field evaluation of selected canola competitive cultivars for suppression of natural weed populations
James M. Mwendwa, William B. Brown, Paul A. Weston, Shamsul K.M. Haque, Jeffrey D. Weidenhamer and Leslie A. Weston   p. 391
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An inventory of Queensland prioritised invasive plant species for management and research
Olusegun O. Osunkoya, Christine Perrett, Kerri Moore, Sam Nicol, Jens Froese, Kristy Gooding and Shane Campbell   pp. 392-396
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Flupropanate resistant serrated tussock (Nassella trichotoma) identified at multiple locations in the Monaro, New South Wales
Jo Powells   p. 397
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The effect of weed interference with cotton in conventional and ultra narrow row spacing condition
Ahmad Rafeizade, Mohammad Armin and Matin Jamimoeini   p. 398
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Studies on tolerance of chickpea (Cicer arietinum L.) to some pre- and post-emergence herbicides
K. Rahamdad, I.A. Khan and S.S. Shah   p. 399
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Competitive wheat (Triticum aestivum) cultivars: A potential tool for managing herbicide resistant weeds
Abhimanyu Rinwa and Manpreet Singh   p. 400
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Efficacy of harvest weed seed control systems on wild oats
Shona L. Robilliard, Linda M. Heuke, Asad Shabbir and Michael J. Walsh   p. 401
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Interventional weed management methods in direct seeded rice
Pasoubady Saravanane   pp. 402-404
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Bionomics and effectiveness of Aak fruit fly: A potential biocontrol candidate for calotrope in Australia
Asad Shabbir, Shahid Ali and Kunjithapatham Dhileepan   p. 405
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Managing barnyard grass through crop competition: The role of row spacing and crop density
Asad Shabbir and Michael J. Walsh   p. 406
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Successful biocontrol of Echium spp.
Paul R. Sullivan   p. 407
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Influence of resource conservation techniques on weed control in green manure maize-pulse cropping system
R. Thirumalaikumar, N.S. Venkataraman, K. Balakrishnan, R. Babu and A. Rathinasamy   p. 408
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Comparison of site-specific, whole field and seedbank physical weed control treatments
Michael J. Walsh, Salah Sukkarieh and Guy R. Coleman   p. 409
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Environmental weed advisory list update, Victoria
Matt White, Kate Blood and Bec James   p. 410
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Physiological and biochemical resistance cost of multiple herbicide resistance in Echinochloa crus-galli
Xia Yang, Yongfeng Li, Zichang Zhang and Tao Gu   p. 411
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Efficacy of pyrazosulfuron-ethyl to manage weeds of rainy season rice under non-puddled field condition and its effect on the subsequent wheat crop
Taslima Zahan, Abul Hashem and Md. Moshiur Rahman   pp. 412-415
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Alterations in the 5'untranslated region of the EPSPS gene influence EPSPS over-expression in glyphosate-resistant Eleusine indica
Chun Zhang, Li Feng and Xing-shan Tian   p. 416
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Investigation of root exudation and phytotoxic potential of diverse Sorghum spp. through regulation of sorgoleone
Xiaocheng Zhu, Paul A. Weston, Ian D. Godwin, Sally Norton and Leslie A. Weston   p. 417
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