16th Australian Weeds Conference
16th Australian Weeds Conference proceedings: weed management 2008 hot topics in the tropics.

Edited by R.D. van Klinken, V.A. Osten, F.D. Panetta and J.C. Scanlan

 

Published in 2008 by the Queensland Weeds Society, soft cover, 532 pages - CD-ROM only as an Adobe Acrobat PDF file

 

Price $A90.00 plus $A8.00 postage within Australia , overseas postage please request a quote.

 

ISBN 9780646515434

  • Papers and proceedings
  • Table of contents

Keynote

Biodiversity symposium

New threats:

    Prediction and risk assessment

    New incursions

    Herbicide resistance threats

    Understanding the invader

    Explaining invasiveness

    Understanding herbicide resistance

    Seed dispersal and spread

    Weed distributions

    Species ecology and management

    Impacts

New technologies

    New technology and tools

    Biocontrol

    Biotechnology and bioherbicides

Herbicide control

Innovative practices and approaches:

    Community processes

    Performance and evaluation

    Biodiversity

    Policy and strategy

    Prevention and eradication

    Application

    Integrated weed management

    Modelling

 

Table of contents

KEYNOTE

Global changes: impacts on weeds in cropping systems. Timothy G. Reeves

1

Cross pollination or cross-contamination? Directions for informing the management of invasives with market-economy concepts. Paul Martin

6

Invasions and impacts of exotic plants in the Pacific islands. Julie S. Denslow

14

Investing in weed research in northern Australia: a livestock industry perspective. Rodd Dyer

17

BIODIVERSITY SYMPOSIUM

Determination and management of the impacts of weeds on biodiversity. Paul O. Downey and Anthony C. Grice

23

Do weed managers need to know about weed impacts? Susan M. Timmins and Kate G. McAlpine

26

Managing complexity: the example of invasive wetland forage grasses. Anthony C. Grice, Justin J. Perry, D. Mike Nicholas and Paul R. Williams

27

The role of native birds in weed invasion, species decline, revegetation and reinvasion: consequences for lantana management. Peter J. Turner and Paul O. Downey

30

Altering weed management priorities to ensure conservation outcomes are achieved: lessons from the Bitou Bush Threat Abatement Plan. Nicole Strehling, Paul O. Downey, Neil Rendell, Scott A. King and Alana L. Burley

33

Research on the environmental impact of weeds in Australia. John K. Scott and Anthony C. Grice

36

NEW THREATS: PREDICTION AND RISK ASSESSMENT

Predicting weediness – what has the Weeds CRC achieved? John G. Virtue, F. Dane Panetta and Jason Emms

39

Weeds in a warmer climate: a tool for assessing tolerance to changing temperatures. Rachael V. Gallagher, Linda Beaumont, Paul O. Downey, Lesley Hughes and Michelle R. Leishman

42

Using geospatial intelligence to assess the invasive threat of Chilean needle grass (Nassella neesiana). David Pullar, Jamie Tan and Julian Fox

43

Future spread of lippia in the Murray-Darling Basin under climate change. Kate E. Stokes, Steve I. Barry, R. Hickson and Saul A. Cunningham

44

The continuing spread of fireweed (Senecio madagascariensis) – the hottest of topics. Brian M. Sindel, P.W. Michael, Rachel E. McFadyen and J. Carthew

47

Weed spread pathways risk assessment in Victoria. Catriona King, Nigel Thomas, Jackie Steel, Trevor Hunt and John Weiss

50

Which WRA works for Western Australia? A comparison of weed risk assessment systems available in Australia using species of varying growth habit, life form and weediness. Lynley M. Stone, Margaret Byrne and John. G. Virtue

53

Spatial modelling of new weed incursions in cropping systems. Rohan T. Jayasuriya, Remy van de Ven and Randall Jones

54

NEW THREATS: NEW INCURSIONS

‘Sleeper weed’: caution, use only as directed. John Dwyer

57

Eradication of three-horned bedstraw (Galium tricornutum) in Western Australia. John H. Moore and Jonathon Dodd

60

Turf weeds across north Australia. Peter G. Harrison

63

Response to Victorian Alert Weeds. Richard J. Plant

64

Preventing the spread of telegraph weed in South East Queensland. Lyn Willsher, Paul Mason and Barry Whyte

67

NEW THREATS: HERBICIDE RESISTANCE THREATS

International survey of herbicide-resistant weeds – survey results and criteria to add cases. Ian Heap

68

2,2-DPA resistance in giant Parramatta grass (Sporobolus fertilis). Sethu Ramasamy, David A. McLaren, Graeme Pritchard, David Officer, Julio Bonilla, Christopher Preston and Ann C. Lawrie

71

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

74

Understanding, predicting and managing weed seedbanks in agricultural systems with the Weed Seed Wizard. Michael Renton, Art Diggle and Sally Peltzer

77

Impact of management on glyphosate-resistant Lolium rigidum populations on farm. Angela M. Wakelin and Christopher Preston

80

Current levels of herbicide resistance in broadacre farming across southern Australia. Peter Boutsalis, Christopher Preston and Gurjeet Gill

83

Incidence of herbicide resistance in relation to cropping practices of south-eastern Australia. John C. Broster and James E. Pratley

84

psbA mutation (Ala251 to Val) in Chenopodium album resistant to triazinones. Els Mechant, Tania De Marez, Olivier Hermann, Robert Olsson and Robert Bulcke

87

Flaxleaf fleabane – the next glyphosate resistant weed? Steven R. Walker and Geoffrey R. Robinson

88

Risks associated with inter-row weed control in row cropping. Sally C. Peltzer, Abul Hashem and Vikki A. Osten

91

Resistance to hormone mimic herbicides and acetohydroxyacid synthase-inhibiting herbicides in Sisymbrium orientale. Mohammed Khiar Mohamed Aman, Peter Boutsalis and Christopher Preston

92

Field testing of glyphosate-resistant awnless barnyard grass (Echinochloa colona) in northern NSW. Tony Cook, Andrew Storrie, Paul Moylan and Bill Adams

93

Evaluating the extent of serrated tussock (Nassella trichotoma) resistance to the herbicide, flupropanate in Australia. David A. McLaren, Ethan Merton, Graeme Pritchard, Sethu Ramasamy, Charles Grech and Julio Bonilla

94

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

97

Field survey of flupropanate-resistant Nassella trichotoma in Victoria. .Sethu Ramasamy, Graeme Pritchard, David A. McLaren, Julio Bonilla, Christopher Preston and Ann C. Lawrie

98

UNDERSTANDING THE INVADER: EXPLAINING INVASIVENESS

Not all disturbances are equal: synthesising the effects of plant demography, natural disturbance and control methods on weed invasions. Yvonne M. Buckley

101

Bitou bush invasion is facilitated by soil chemistry changes which inhibit the growth of native plants. Emilie-Jane Ens, Kristine French and J.B. Bremner

104

Does plant response to the limiting resource explain invasibility? An experimental test using two invasive weeds and their non-invasive native congeners. Céline Clech-Goods, Shon Schooler, Catherine Lovelock and Susanne Schmidt

107

Invasion of aquatic macrophytes in peri-urban waterways of south-east Queensland. Lauren D. Quinn, Shon Schooler and Rieks D. van Klinken

108

Management of invasive plants in relation to life history. Satu Ramula and Yvonne M. Buckley

109

UNDERSTANDING THE INVADER: UNDERSTANDING HERBICIDE RESISTANCE

The influence of pollen competition on gene flow in small patches of Lolium rigidum Gaud. (annual ryegrass). Jeanine Baker and Christopher Preston

110

Gene movement in herbicide resistant sowthistle (Sonchus oleraceus L.). Robin S. St. John-Sweeting, Christopher Preston, Jeanine Baker, Steve Walker and Michael Widderick

113

Characterising glyphosate resistance in Amaranthus palmeri. R. Douglas Sammons, Amanda Herr, David Gustafson and Michelle Starke

116

Incidence of the endophyte Neotyphodium occultans in annual ryegrass in southern New South Wales. Karen A. Kirkby, James Pratley, David E. Hume, M. McCully, Alexa Seal and M. An

117

Investigation into the mechanisms of resistance of trifluralin-resistant Lolium rigidum. Benjamin J. Fleet, Gurjeet S. Gill and Christopher Preston

120

Barnyard grass responses to glyphosate – the importance of morphological traits. Michelle D. Keenan, Steve Walker, Michael Widderick, Brian Sindel and Ian Taylor

121

UNDERSTANDING THE INVADER: SEED DISPERSAL AND SPREAD

Exotic invasions of the Burdekin catchment, North Queensland. Roger Lawes and Anthony Grice

122

Weed recruitment following cyclonic disturbance of rainforest in Queensland’s Wet Tropics. Daniel J. Metcalfe, Matthew G. Bradford, Andrew J. Ford, Helen T. Murphy, Gabrielle Vivian-Smith and David A. Westcott

125

Dispersal and establishment of bird-dispersed weed and native species in early successional subtropical habitats. Eve White, Anna Barnes and Gabrielle Vivian-Smith

126

Towards an understanding of interactions between serrated tussock (Nassella trichotoma) and soil fungal communities. Annemieke Schneider, Brian M. Sindel, David Backhouse and Kathy King

129

The dynamics of invasion as a function of landscape connectivity. Ric Colasanti, Rieks D. van Klinken, Shaun Coutts and Yvonne Buckley

130

Dispersal of buffel grass (Cenchrus ciliaris L.) by ants in Shark Bay, Western Australia. Penelope Goldsmith, Helen Spafford and Greg J. Keighery

133

Recruitment and growth dynamics of Miconia calvescens (Melastomataceae) in tropical forest impacted by Cyclone Larry. Helen T. Murphy, Simon J. Brooks, Matthew G. Bradford, Daniel J. Metcalfe and David A. Westcott

137

Buoyancy and germination of pond apple (Annona glabra L.) propagules in fresh and salt water. Stephen D. Setter, Melissa J. Setter, Michael F. Graham and Joseph S. Vitelli

140

UNDERSTANDING THE INVADER: WEED DISTRIBUTIONS

Modelling climatic change impacts on sleeper and alert weeds. John K. Scott, Kathryn L. Batchelor and Paul B. Yeoh

143

The evolutionary consequences of hybridisation between a native and invasive Senecio. Eleanor E. Dormontt

146

Interregional comparison of the size-structure of populations of Melaleuca quinquenervia in its native and exotic range, with and without biocontrol agents. Lucero Sevillano, Paul D. Pratt, Steven Franks and Carol C. Horvitz

147

Worldwide phylogeography of the globally invasive plant: Jatropha gossypiifolia. Peter J. Prentis, Sathyamurthy Raghu, Kunjithapatham Dhileepan and Andrew J. Lowe

150

Genetic variability of wheel cactus (Opuntia robusta Wendl.) in southern Australia: implications for weed spread and biological control. Jeanine Baker, Mike Keller and Christopher Preston

153

The distribution of grey sallow willow (Salix cinerea) and pussy willow (Salix reichardtii) in the Mount Lofty Ranges of South Australia. Robin B. Coles and Phil Cramond

154

Mapping the distribution of weeds and ferals in the Wet Tropics Bioregion. Daniel J. Metcalfe, Tina Lawson and James Butler

155

UNDERSTANDING THE INVADER: SPECIES ECOLOGY AND MANAGEMENT

Modelling the population dynamics of multi-species woody weed infestations. Andrew F. Zull, Oscar J. Cacho and Roger A. Lawes

156

Prevalence of biological control agents on groundsel bush in relation to plant size and survey site. Nikki M. Sims, Yvonne M. Buckley, Adele M. Reid and Myron P. Zalucki

159

Phenotypic variation within contrasting environments: a study of the invasive macrophyte, Hymenachne amplexicaulis across Australia. Lynise J. Wearne, Anthony C. Grice and Mike Nicholas

162

A unique weed problem — the control of fairy grass Lachnagrostis filiformis seedheads on Lake Learmonth in western Victoria. Andrew D. Warnock, Singarayer K. Florentine, F. Patrick Graz and Martin E. Westbrooke

165

Can effective weed management be obtained by grouping species by life cycle? Case studies from the cotton industry II. Stephen B. Johnson

168

A review of the ecology of fleabane (Conyza spp.). Todd D. Green, Brian M. Sindel, Graham Charles and Jeff Werth

171

Seed dynamics of the invasive geophyte Lilium formosanum on Lord Howe Island – lots of seeds but they don’t live long. Susie Warner, Anthony C. Grice, John A. Duggin and Caroline L. Gross

174

Interactions between butterfly pea (Clitoria ternatea) and rubber vine (Cryptostegia grandiflora). Faiz F. Bebawi and Joseph S. Vitelli

177

Seed production and maturation of Limnocharis flava (L.) Buchenau in the field and glasshouse. Simon J. Brooks, Jason M. Weber, Stephen D. Setter and Brodie A. Akacich

180

Germination biology of Portulaca oleracea L. Bhagirath S. Chauhan and David E. Johnson

183

Movement of dieback through a stand of parkinsonia – a time series study. Naomi Diplock, Victor Galea and Rieks D. van Klinken

186

Acaciella angustissima: a soil seed bank study. Chris Gardiner, Noemie Chanclud, Bree Clouten and Kendrick Cox

187

Growth of Koster’s curse (Clidemia hirta) from seedlings to reproductive maturity and following mechanical damage. Michael F. Graham, Katie A. Patane and Stephen D. Setter

189

Neem – a new threat to northern rivers. Dick Pasfield

192

Cytisus scoparius plants infected by the native parasitic plant Cassytha pubescens have reduced growth and reproductive output . Jane Prider, José M. Facelli, Jennifer Watling and John Virtue

193

UNDERSTANDING THE INVADER: IMPACTS

Using spatial models and a Bayesian belief network to predict risk of parkinsonia invasion at a landscape scale in northern Australia. Rieks D. van Klinken, Leonie Seabrook, Carl Smith, Justin Ryan and Clive McAlpine

194

Impact of biological control of Salvinia molesta on native plant species biodiversity in temperate climates. Bertie R. Hennecke and Kristine French

195

Ecosystem impacts of an exotic grass in northern Australia: effects on structure and carbon stocks. Samantha Setterfield, Michael Douglas, Lindsay Hutley, Keith Ferdinands, Emilie-Jane Ens, Kristine Brooks and Natalie Rossiter

198

Competitive effects of wireweed (Polygonum aviculare L.) in field and glasshouse studies. Viv F. Burnett, Ken R. Young, David McLaren, Sorn Norng, Rob Norton, Deirdre Lemerle and Roger Cousens

199

An investigation of the effects of disturbance on the establishment of Nassella neesiana (Trin. & Rupr.) Barkworth (Poaceae) in an Australian native grassland Ian Faithfull, Colin Hocking and David McLaren

202

Do tissue chemical components and the effect of vegetation on soil properties contribute to the invasiveness of lippia (Phyla canescens)? – indications from soil moisture and plant calcium concentration. Cheng-Yuan Xu and Rieks D. van Klinken

205

A preliminary assessment of the composition and cover of vascular plants associated with patches of Nassella neesiana (Trin. & Rupr.) Barkworth (Poaceae) in an Australian native grassland. Ian Faithfull, Colin Hocking and David McLaren

206

Ecology and herbicide tolerance of the native weeds that cause pimelea poisoning. Richard G. Silcock, Michael B. Mann and Kerrin A. Morrissy

209

Native Rumex spp. (Polygonaceae) and their utilisation by the dock moth Pyropteron doryliformis (Ochsenheimer) (Lepidoptera: Sesiidae) in Australia. Dianne B.J. Taylor, Helen Spafford and Tim A. Heard

212

Grader grass (Themeda quadrivalvis): changing savannah ecosystems. Wayne D. Vogler and Nikki A. Owen

213

NEW TECHNOLOGIES: NEW TECHNOLOGY AND TOOLS

Low herbicide rates can lead to faster development of herbicide resistance. Michael Renton, Art Diggle and Stephen Powles

215

A spatio-temporal modelling framework for assessing the impact of weed management technologies on the spread of herbicide resistance. Fiona H. Evans and Art J. Diggle

218

Mapping lantana using Landsat to further the National Weeds Strategy. Andrew J. Stewart, Grant W. Hodgins, Tim J. Danaher and Andrew Clark

221

Precision guided mechanical weed control. Madan L. Gupta, Doug L. George and Leigh Norton

222

The Irvin Boom – adapting proven sugar cane industry weed management technology for dryland broadacre agriculture. Vikki Osten and Gavin Lotz

223

Simulating the spread of Miconia calvescens in Queensland’s Wet Tropics. Cameron S. Fletcher, David A. Westcott, B. Denise Hardesty, Helen T. Murphy and Dan J. Metcalfe

226

Breeding for improvement in weed competitive ability in bread wheat. Michael C. Zerner, Gurjeet S. Gill and Greg J. Rebetzke

227

Soil amendments enhance soil solarisation efficiency in controlling weeds under the environment of the United Arab Emerites. Ali El-Keblawy and Fatima Al-Hammadi

228

NEW TECHNOLOGIES: BIOCONTROL

Winning the lottery: return on investment from weed biocontrol programs. Rachel McFadyen

231

Applications of CLIMEX modelling leading to improved biological control. K.A.D. Wilmot Senaratne, William A. Palmer and Robert W. Sutherst

234

An update on progress towards biological control of Nassella neesiana in Australia and New Zealand. Freda E. Anderson, Andrea C. Flemmer, Paula V. Hansen, David A. McLaren and Jane Barton

237

Factors influencing the release and establishment of weed biological control agents. Helen Spafford, Michael Day, Louise Morin and John Ireson

240

Progress on the biological control of two invasive aquatic plants, cabomba (Cabomba caroliniana) and alligator weed (Alternanthera philoxeroides). Shon Schooler and Mic Julien

243

Chondrostereum purpureum reduces the regeneration of gorse (Ulex europaeus) following application to cut stumps Graeme W. Bourdôt and Geoff A. Hurrell

244

Phyla canescens: multiple introductions into Australia as revealed by ISSR markers and nuclear ribosomal DNA internal transcribed spacers (ITS). Mohammad Fatemi, Caroline Gross, Mic Julien and John A. Duggin

247

The salvinia weevil Cyrtobagous salviniae controls salvinia in temperate Sydney. Paul R. Sullivan, Lesley A. Postle and Royce H. Holtkamp

250

Infection process of Septocyta ruborum, a coelomycetous fungus with potential for biological control of European blackberry in Australia. Janita Baguant, Robin J. Adair and Ann C. Lawrie

251

Defoliation of Cirsium vulgare and Cirsium arvense rosettes by goats. Kerry C. Harrington, Wagner B. Beskow and John Hodgson

254

Prospects for Hudson pear biological control in Australia. Royce H. Holtkamp

255

Feasibility of biological control of silverleaf nightshade in Australia. Raelene M. Kwong, Jean Louis Sagliocco, John Weiss, Trevor Hunt and Tereso Morfe

256

Two biological control options for Sonchus oleraceus in Australia. Kathryn L. McCarren and John K. Scott

259

Boneseed rust: a highly promising candidate for biological control. Louise Morin and Alan Wood

262

Additional strains of the Noogoora burr rust fungus to enhance biocontrol in Northern Australia. Louise Morin, Melissa Piper, Raelene M. Kwong, Rieks D. van Klinken and Blair Grace

263

Prospects for the biological control of the weedy sporobolus grasses in Australia. William A. Palmer, Kwasi S. Yobo and Arne B.R. Witt

264

Impact evaluation of bridal creeper biological control in southern NSW. Adele Reid, Louise Morin and Michael Neave

267

Prairie ground cherry: what should be done before it is too late? Jean-Louis Sagliocco, Raelene M. Kwong, David McLaren, John Weiss, Tereso Morfe and Trevor Hunt

268

Parthenium weed: management prospects in Pakistan. Asad Shabbir and Steve W. Adkins

271

Survival of dock moth larvae, Pyropteron doryliformis (Lepidoptera: Sesiidae), in tubers of fiddle dock (Rumex pulcher). Helen Spafford, Jodie Hawley and Geoff Strickland

272

Interactions between three weed biological control agents of Paterson’s curse, Echium plantagineum. Helen Spafford, Jodie Hawley, Paul Wilson and Geoff Strickland

275

The establishment and spread of the latest biocontrol agents released against Lantana camara in Australia. Dianne B.J. Taylor, Natasha Riding, Annerose Chamberlain, Andrew Clark and Michael D. Day

279

NEW TECHNOLOGIES: BIOTECHNOLOGY AND BIOHERBICIDES

Molecular control of sexual reproduction in wild radish (Raphanus raphanistrum). Andrew Young, Michael Groszmann, Susan Hoebee, Joshua Koh, Ed Newbigin and Steve Swain

280

Towards a bioherbicide for alligator weed. Ross L. Gilbert, Geoff M. Gurr, Michael J. Priest and Andrew Mitchell

283

Evaluation of fungal isolates for potential use as mycoherbicides for seed bank reduction of Parkinsonia aculeata. Ruey Toh, Victor J. Galea, Naomi Diplock and Rieks D. van Klinken

284

Glyphosate displays disease control activity in glyphosate resistant crops. Paul C.C. Feng, Frank C. Kohn, R. Douglas Sammons and Keith A. Kretzmer

287

NEW TECHNOLOGIES: HERBICIDE CONTROL

Prolonging glyphosate effectiveness on difficult to control summer weeds. Jeff Werth, Michael Widderick, Vikki Osten and Steve Walker

288

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

291

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

294

Pyroxsulam for broad-spectrum weed control in wheat. Greg S. Wells

297

Florasulam + MCPA for broad spectrum broadleaf weed control in winter cereals in southern Australia. Peter Nott

300

Control of Lantana camara following monthly applications of herbicides at Tarong, Queensland. Christopher O. Love and Ian D. Corr

303

Annual ryegrass control affected by choice of management system. Rex Stanton, James Pratley and David Hudson

306

Seedbank management of Orobanche ramosa in South Australia. John M. Matthews, Daryl Miegel, Dorothy Hayton and S. Lamey

309

Controlling seed set of wild radish (Raphanus raphanistrum L.) with herbicide application during reproduction. Aik Cheam and Siew Lee

312

Effects of isoxaflutole on the growth and nodulation of chickpea (Cicer arietinum) under different soil nitrogen rates. Avishek Datta, Brian M. Sindel, Robin S. Jessop and Warwick L. Felton

313

Rainfastness of phenoxy herbicide formulations on four pasture weeds. Trevor K. James, Anis Rahman and Alan Cliffe

316

Herbicide tolerance in pasture legumes and herbs. Peter Lockley and Hanwen Wu

319

An assessment of native tree susceptibility to the simulated aerial application of the herbicide flupropanate, for management of exotic unpalatable grasses. David A. McLaren, Kelly Snell and Kym Butler

323

The tolerance of grapevines to herbicides. John H. Moore and Colin L. McDonald

326

The performance of AXIAL® in the control of aryloxyphenoxy propionate resistant wild oats (Avena spp.) in wheat and barley. Craig A. Ruchs

329

Home among the gum trees – not necessarily so for silverleaf nightshade. Rex Stanton, Hanwen Wu, Min An and Diedre Lemerle

330

Florasulam + clopyralid for broad spectrum broadleaf weed control in winter cereals in southern Australia. Greg S. Wells

333

Florasulam + isoxaben for management of herbicide resistant wild radish in Western Australia. Greg S. Wells

336

Understanding the behaviour of dazomet in dryland broad acre field situations. Anna M. Williams, Nick M. Secomb and John G. Virtue

339

INNOVATIVE PRACTICES AND APPROACHES: COMMUNITY PROCESSES

A review of the National Weed Detection Project. S. Jane Morton

340

Bush For Life: a successful model for community participation. Mark F. Ellis, Andrew Allanson and Peter Watton

343

National blackberry biological control program in partnership with the community. Louise Morin, Robin Adair, Ruth Aveyard, Kathy Evans, Don Gomez, John Lester and Paul Yeoh

344

Sessile joyweed (Alternanthera sessilis): a popular leafy vegetable in South East Asia but federal noxious weed in USA. Lalith Gunasekera

347

The Cape York Weeds and Feral Animals Program: undertaking pest management on Cape York. Trent Cini

349

When do we need to incorporate human behaviour into models of weed control, and how do we do it? Shaun Coutts, Yvonne Buckley and Hiroyuki Yokomizo

352

Social aspects associated with the continual spread of Sagittaria platyphylla. Lauren Forrest

353

What does your garden grow? - educating the home gardener. Annette Beer, Birgitte Verbeek and Rita Reitano

357

Alligator weed: from backyards to nature in Victoria. Lalith Gunasekera and Julio Bonilla

358

Developing and implementing a regional weed management strategy through a community engagement and education process. Susan King, Alice Beilby and Alison Derry

360

Engaging the Victorian fodder industry for improved weed management. Claire Norris

362

Understanding the invader. Clare Raven and Kym Johnson

365

Educate to eradicate: incorporating weed issues into primary education. Alyssa Schembri, Hillary Cherry, Julie Haeusler, Jane West and Birgitte Verbeek

368

INNOVATIVE PRACTICES AND APPROACHES: PERFORMANCE AND EVALUATION

Defeating the Weed Menace R&D: facilitating innovation and adoption. Judy Lambert

369

Guidelines for improving impact evaluation of weed biocontrol. Adele M. Reid, Louise Morin and Royce H. Holtkamp

372

Evaluation: providing better weed awareness outcomes for NSW. Alyssa Schembri, Annette McCaffery and Birgitte Verbeek

375

A strategic framework for managing the environmental impacts of weeds on public land in Victoria, Australia. Stephen J. Platt, Robin Adair, Matt White, David Cheal and Nigel Ainsworth

376

INNOVATIVE PRACTICES AND APPROACHES: BIODIVERSITY

Optimising weed control by considering disturbance. Jennifer Firn, Tracy Rout, Hugh Possingham and Yvonne Buckley

379

The NSW Bitou Bush Threat Abatement Plan: the first two years. Alana L. Burley, Scott A. King and Paul O. Downey

383

The weed control paradox: effect of management disturbance on the composition and structure of invaded communities. Alice Yeates

386

Determining sites for weed control and biodiversity conservation. Paul O. Downey

387

Weed management guides: managing weeds for biodiversity. Margaret A. Robertson

389

Implications of successful biological control of bridal creeper (Asparagus asparagoides (L.) Druce) in south-west Australia. Peter J. Turner, John K. Scott and Helen Spafford

390

The triage approach to conserving biodiversity from lantana invasion. Peter J. Turner, Mark A. Hamilton and Paul O. Downey

393

INNOVATIVE PRACTICES AND APPROACHES: POLICY AND STRATEGY

Developing a national incursion response plan for high priority weeds. Philip E. Maher, Mike Cole and S. Jane Morton

394

A national approach to weed categorisation and management. Martin Hannan-Jones and Steve Csurhes

395

Nursery and Garden Industry and invasive plants. Robert Chin

398

Preventing further introduction and spread of aquatic weeds through the ornamental plant trade. Andrew Petroeschevsky and Paul Champion

399

Strategic weed communications to meet client needs. Annette McCaffery, Alyssa Schembri and Birgitte Verbeek

403

A cooperative model for tackling weeds across a regional landscape. Paul Devine, Kirby T. Doak, Matt Hyde and Darlene Irvine

404

‘Green bulldozers’ and ‘flammable triffids’: responding to the threats posed by invasive grasses in tropical northern Australia. Keith Ferdinands and Samantha Setterfield

407

Prioritising weed management for biodiversity conservation at the NRM level. Moira C. Williams, Bruce Auld, Clare M. O’Brien, Neil Rendell and Paul O. Downey

408

Reducing the risk of new weed introductions through strategic engagement. Mark Farrer and Stephen Young

411

Can noxious weed legislation be used to deliver biodiversity conservation? Examination of the New South Wales Noxious Weeds Act 1993. Stephen. B. Johnson and Paul O. Downey

414

Optimal frequency for woody weed management for North Queensland grazing properties: an economic perspective. Andrew F. Zull, Roger A. Lawes and Oscar J. Cacho

415

INNOVATIVE PRACTICES AND APPROACHES: PREVENTION AND ERADICATION

Evaluating progress in weed eradication programs. F. Dane Panetta and Simon J. Brooks

418

Working towards eradication of Miconia calvescens and M. nervosa in a tropical rainforest: history, current status and future challenges. Travis A. Sydes and Kylie E. Galway

421

Processes leading to the detection of tropical weed infestations during an eradication program. Simon J. Brooks and Kylie E. Galway

424

Eradication versus long-term surveillance and removal: contrasting approaches to Chrysanthemoides monilifera (L.) Norlindh management in Australia. Hillary Cherry

427

The National Four Tropical Weeds Eradication Program: a case study for future weed eradication projects in the wet tropics. Kimberley Erbacher, Travis A. Sydes, Kylie E. Galway and Simon J. Brooks

430

Is eradication of the invasive tree miconia feasible? Lessons from 15 years of active management in French Polynesia (Pacific Islands). Jean-Yves Meyer

433

Gorse control in Western Australia. John H. Moore and P. Williams

434

Hygrophila costata demonstration and pilot eradication project. Phillip L. Moran and Vanessa Moscato

437

Stemming the spread – the lantana containment zone project. Michele Rogers and Kym Johnson

441

INNOVATIVE PRACTICES AND APPROACHES: APPLICATION

Innovative methods of water hyacinth removal in tropical coastal wetlands – cutting the costs. Vern Veitch, Damien Burrows and David Hudson

444

Influence of tillage on patterns of weed seedling emergence in rice. Bhagirath S. Chauhan and David E. Johnson

448

The control of bellyache bush (Jatropha gossypifolia) monocultures – properties of a bellyache bush burn. Acacio da Costa Guterres, Penny Wurm, John Janes and Tania Paul

451

Weedy fire regimes: incorporating weed issues into fire programs. Paul Williams

454

Lantana best practice management – the decision support tool. Daniel Stock, Kym Johnson and Andrew Clark

457

The utility of molecular marker approaches to understanding plant invasions. Britta Denise Hardesty and David Westcott

460

Weed spread prevention: simple activities for field operations. Jodie Bocking, Kylie E. Galway and Simon J. Brooks

461

Using land manager workshops to develop serrated tussock best management practices. Peter Fullerton, David A. McLaren, Michael Moerkerk, Charles Grech and Bronwen Wicks

464

A rapid mapping method for Themeda quadrivalvis (grader grass) and other roadside weeds. Andrew Colvill

467

Tactics for the control and possible eradication of terrestrial alligator weed (Alternanthera philoxeroides). Tony Cook and Andrew Storrie

469

Developing a one-stop shop for the biological control of Paterson’s curse in Australia. Raelene Kwong and Greg Lefoe

472

Three steps to successful management of Chilean needle grass (Nassella neesiana). Kelly Snell and Charles Grech

473

INNOVATIVE PRACTICES AND APPROACHES: INTEGRATED WEED MANAGEMENT

Weed seed removal by ants in the crop growing areas of Western Australia. David M. Minkey and Helen Spafford

474

Depleting weed seed banks within non-crop phases for the benefit of subsequent crops. David G. Ferris

477

Control and seed production of annual ryegrass in wide row lupins in the Western Australian wheatbelt. Abul Hashem, Alex Douglas, Shahab Pathan, Glen Riethmuller and Sally Peltzer

480

Competitive effects of sorghum cultivars and densities on weed suppression. Hanwen Wu, Steven R. Walker, Vikki A. Osten and Geoff Robinson

483

Chilean needle grass – three years of best practice management. Charles J. Grech, David A. McLaren and Brian M. Sindel

487

The effect of fire and herbicide on rubber vine (Cryptostegia grandiflora) in Bowling Green Bay National Park, Queensland. Eleanor M. Collins, Anthony J. Contarino, Jeffrey Hasted and Paul R. Williams

488

Lion’s tail control at Boodjamulla National Park. Carly Greig

491

Managing herbicide resistance in wide row lupin (Lupinus angustifolius) in Western Australia. Abul Hashem, Mike Collin, David Bowran and Paul Blackwell

494

AAco winning the war on weeds: research, trial and innovation. Suzanne Kearins and Claire Dyason

495

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

496

An economic evaluation of weed management options for cotton-based farming systems in Muzarabani. Zira Mavunganidze, Arnold B. Mashingaidze, O.A. Chivinge, Jim Ellis-Jones, M. Mutenje and Richard Foti

497

Integrated management of blackberry in Western Australia. John Moore, Andrew Reeves and Simon Merewether

500

Managing perennial summer weeds with competitive pastures. Rex Stanton, Hanwen Wu, Brian Dear and Deirdre Lemerle

503

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

504

INNOVATIVE PRACTICES AND APPROACHES: MODELLING

Weeds getting steamed-up in the tropics: climate change effects on ecosystem water use efficiency and woody plant range. Darren J. Kriticos

506

Improving the agent selection, release and evaluation process: the role of bioclimatic modelling. Ben E. Lawson, Rieks D. van Klinken, Michael D. Day, Tim A. Heard and Myron P. Zalucki

510

Modelling to estimate glyphosate resistance risk in barnyard grass in the northern Australian grain region. David Thornby, Steven R. Walker and Jeremy P.M. Whish

513

The potential impact of Scotch broom on softwood forestry in Australia. Karina J.B. Potter, Darren J. Kriticos and Michael S. Watt

516

Ocean dispersal modelling for propagules of pond apple (Annona glabra L.). Luciano B. Mason, Melissa J. Setter, Stephen D. Setter, Thomas Hardy and Michael F. Graham

519

Climate change impacts on Scotch broom in Australia. Karina J.B. Potter, Darren J. Kriticos and Agathe Leriche

522

AUTHORS’ INDEX

525

KEYWORD INDEX

528