12th Australian Weeds Conference
12th Australian Weeds Conference proceedings - weed management into the 21st Century: do we know where we're going?

Edited by A.C Bishop, M. Boersma, and C.D. Barnes

 

Published 1999 by Tasmanian Weed Society - available CD-ROM (PDF) only

 

Price $A71.00 plus $A8.00 postage within Australia, overseas postage please request a quote

 

ISBN 0646395351, or ISBN 9780646395357

Organized by the Tasmanian Weed Society Inc. for Council of Australian Weed Science Societies at Wrest Point Convention Centre, Hobart 12-16 September 1999

 

  • Papers and proceedings
  • Table of contents


Pasture management for the 21st Century
Assessing and evaluating the weed problem
Weed management and ecology: crops and pastures
Strategic/regional approaches to weed management
Weed education and communication
Integrated weed management in cropping systems
Integrated weed management in pasture systems
Environmental weeds - how long can we wait?
Weed management for sustainable agricultural systems
Weed management and ecology: natural ecosystems
Herbicide resistance: the real Y2K bug?
Biological control of weeds
Herbicides as weed management tools
Strategic approaches to weed management: working together
Weed science: are we doing it right?
Weed management and ecology: aquatic systems
Weed risk assessment: a key component of weed management in the 21st Century?
New approaches to new weed incursions

Table of contents

 

PASTURE MANAGEMENT FOR THE 21ST CENTURY

 

Control of Hypericum perforatum L. (St John’s wort) by a grazing management system that uses merino sheep. Christopher Bourke and Ian Southwell

4

Chilean needle grass (Nassella neesiana) – what we know and where to next? M.R. Gardener, B.M. Sindel and R.B.D. Whalley

8

Ecology and management of saffron thistle (Carthamus lanatus L.) in New South Wales pastures. B. Grace, B.M. Sindel, A.W. Sheppard and R.D.B. Whalley

13

Nassella tussock management in New Zealand. Shona Lamoureaux and Graeme Bourdôt

16

Control of serrated tussock – problems in developing IWM systems. David Michalk, David Kemp, Malcolm Campbell and David McLaren

20

Thermal weed control, a technology with a future? Mike Collins

25

IWM - a new hope for control of broadleaf pasture weeds? Ruth K. Huwer, David T. Briese, Andrew W. Sheppard et al.

29

ASSESSING AND EVALUATING THE WEED PROBLEM

On farm monitoring of weed occurrence and density in the northern grain region. J.J. Gavin, L.J. Rew, R.W. Medd, G.R. Robinson and S.R. Walker

31

Organic weed management research in Australia. P.E. Kristiansen, B.M. Sindel and R.S. Jessop

35

Establishing trees to control serrated tussock (Nassella trichotoma (Nees) Arech.). M.H. Campbell and P.M. Dowling

39

Evaluation of alternative methods of weed control in municipal areas. Chris Nazer, Zel Bodulovic and Andrew Somervaille

43

Weed surveillance – catching ‘em early. Helen Braithwaite and Susan M. Timmins

47

Managing noxious weeds in an urban parkland – the Centennial Parklands, Sydney. Nimal Chandrasena and Tom Dunlop

51

WEED MANAGEMENT AND ECOLOGY: CROPS AND PASTURES

Selective spray-topping: field testing of a new technique for reducing wild oat seed production. Tony Cook, Andrew Storrie and Richard Medd

53

Canola tolerance to herbicides. John Heap, Trent Potter, Rob Wheeler, Jack Kay and Ian Ludwig

57

Annual bluegrass (Poa annua L.): a challenging weed. Hilde Eelen, Robert Bulcke, Bart Debussche and Ian Heap

62

We do not understand crop-weed mixtures yet. Johan Warringa, Clare Murphy, Deirdre Lemerle and Roger Cousens

67

Dynamics of paradoxa grass (Phalaris paradoxa L.) soil seedbank. Ian Taylor, Steven Walker Steve Adkins, Kathryn Bullen and Nick Peters

71

Comparative ecology of wild oats (Avena fatua and Avena sterilis subsp. ludoviciana). Geoffrey Barry and Roger Cousens

76

A new seed pressing system for ryegrass suppression and healthy lupin establishment. Mohammad Amjad and Glen Riethmuller

77

Improving the efficacy of glyphosate in minimum/no-tillage cereal production by varying water volume used in application. Andrew Bishop, Ken Young and Lars Dittmann

79

Molecular differentiation of wild oat and wild radish species and biotypes. Mui-Keng Tan and Richard Medd

80

STRATEGIC/REGIONAL APPROACHES TO WEED MANAGEMENT

Strategic weed management: The way forward. Richard Hall

82

Weed management – planning and implementation. Peter Jeffrey and John Ready

86

Developing a protocol to assist landcare groups in weed management: a case study of Tarcutta Creek Catchment. Toni Nugent, Deirdre Lemerle, Birgitte Verbeek et al.

91

Implementing the NSW weeds strategy – a regional planning approach to noxious weed management. Len Woods and Richard Carter

95

Community weed management in Tasmania. Stephen Welsh, David Elliott and Andrew Bishop

98

Roadside and linear corridors – A strategic approach to management. Chris Knight

102

National Weeds Strategy – a strategic approach to weed problems of national significance. John Thorp

104

WEED EDUCATION AND COMMUNICATION

Weed management and identification workshops assist the management skills of farmers. Michael R. Moerkerk, Toni Nugent and John H. Kent

106

Directions in pasture weed extension. Ursula Taylor and Ian Reeve

110

Do farmers adopt new management strategies developed by researchers? Do researchers communicate their results effectively? Kathryn Bullen (Galea), Elizabeth Woods

113

Issues in training herbicide applicators. John Kent

118

The Weed Navigator: a contact directory and resource guide for weeds in Australia and New Zealand. Ursula Taylor, Kate Blood, Toni Nugent and Susan Timmins

123

National Weedbuster Week: the past, present and future. Salvo Vitelli, Toni Nugent, Kate Blood, Ursula Taylor et al.

125

Training in weed identification and management. John Kent, Toni Nugent and Michael Moerkerk

130

INTEGRATED WEED MANAGEMENT IN CROPPING SYSTEMS

Integrated weed management maintains yields in the wheat-belt of Western Australia. Alexandra Wallace and David Bowran

132

INTEGRATED WEED MANAGEMENT IN PASTURE SYSTEMS

Weed-proofing pastures: how can we go about it? D.R. Kemp, W. McG. King, D.L. Michalk and Y. Alemseged

138

ENVIRONMENTAL WEEDS – HOW LONG CAN WE WAIT?

Can we afford to delay action against weeds in valued natural areas? F.D. Panetta

144

What is the appropriate paradigm for managing and modelling weed problems: the case for a longer term population management. Randall Jones and Richard Medd

149

KEYNOTE ADDRESS

Weed management for sustainable agricultural systems. Alex A. Avery

160

PASTURE MANAGEMENT FOR THE 21ST CENTURY

Efficacy of herbicides on serrated tussock in pot trials. G.H. Pritchard and J. Bonilla

165

Is fertiliser the best herbicide? The effect of fertilisation on weed competition in pastures. Warren King and Sue Priest

170

Pasture management of reproductively efficient grassy weeds. Wal Whalley, Mark Gardener and Judi Earl

174

The seed biology of Parthenium hysterophorus L. Sheldon Navie, Dane Panetta, Rachel McFadyen and Steve Adkins

176

A simple method to break the dormancy of saffron thistle seed. Warwick Badgery, David Michalk, Gordon King and Geoffrey Millar

177

WEED MANAGEMENT AND ECOLOGY: CROPS AND PASTURES

Factors affecting the germination and emergence of wild radish (Raphanus raphanistrum) and their effect on management options. Ken Young and Roger Cousens

179

Integrated weed management in chickpea: How much do we know? Jeremy Whish, Brian Sindel, Robin Jessop and Warwick Felton

183

Influence of temperature on the allelopathic potential of Vulpia residues. Hanwen Wu, Min An, Jim Pratley and Terry Haig

187

Weed and crop management have a major impact on weed seed bank. Steven Walker, Geoff Robinson, Richard Medd and Ian Taylor

191

Competition between wild radish cohorts and wheat. Janet Cameron, Johan Warringa and Roger Cousens

195

The ecology of Polymeria longifolia in cotton. Stephen B. Johnson, Brian M. Sindel and Robin S. Jessop

196

Distribution, importance and management of Sonchus oleraceus (common sowthistle) in the northern cropping region of Australia. Michael Widderick, Brian Sindel and Steve Walker

198

WEED MANAGEMENT AND ECOLOGY: NATURAL ECOSYSTEMS

Woody weed adaptive management – a new perspective. Robert Lowe, Trevor Stanley, Shane Campbell and John McKenzie

200

Control of blackberry, common bracken, gorse and lantana with a combination of picloram amine and metsulfuron methyl in eastern Australia. Alan Murphy and Colin Plater

205

Analysing the velocity of weed invasion: Bridal creeper in south-western Australia. Chris Stansbury

210

HERBICIDE RESISTANCE: THE REAL Y2K BUG?

Control of Group B resistant wild radish in wheat. Aik Cheam, Siew Lee, David Bowran and Abul Hashem

219

Resistance of annual ryegrass (Lolium rigidum) biotypes to glyphosate. J. Pratley, R. Stanton, N. Urwin, P. Baines, D. Hudson and G. Dill

223

A systems approach to the control of herbicide resistant ryegrass. William Roy

226

An appraisal for alternative strategies for managing herbicide-resistant weeds. G.R. Robinson, DA. Wills, S.R. Walker, and S.W. Adkins

227

BIOLOGICAL CONTROL OF WEEDS

Enhancing weed biological control in temperate Australia through the CRC. D.T. Briese

229

The development of an Australian bioherbicide. N.S. Crump, G.J. Ash and R.J. Fagan

235

Effect of rust on the efficacy of foliar applied herbicides on rubber vine. Joseph Vitelli and Barbara Madigan

238

New biological control initiatives against weeds of south American origin in Australia: Nassella tussock grasses and blue heliotrope. D.T. Briese, D.A. McLaren, W. Pettit, M. Zapater, F. Anderson, R. Delhey and R. Distel

242

Know your enemy: the use of molecular biology in the onopordum biological control project. P.C. O’Hanlon, D.T. Briese and R. Peakall

243

A new biocontrol introduction against Parthenium hysterophorus in Queensland. Mariano Treviño, Fe Ambatali and Rachel McFadyen

244

Prospects for the biological control of gorse in Australia. J.E. Ireson, A.H. Gourlay, R.M. Kwong, R.J. Holloway, and W.S. Chatterton

245

Oversummering and host specificity of Zygina sp. (Cicadellidae), a potential agent for the control of bridal creeper, Asparagus asparagoides (Asparagaceae). K. Batchelor, J.K. Scott, A.B.R. Witt, T.L. Woodburn

246

Apian minimarum (Coleopteran: Aponia) and the control of Emex australis (Polygonaceous). Paul B. Yeoh, John K. Scott, and Tim L. Woodburn

247

Effectiveness of biocontrol of Carduus nutans in Australia. T.L. Woodburn

248

WEED MANAGEMENT AND ECOLOGY: CROPS AND PASTURES

Orchard weed control with Decahedra microtia ground covers. Kerry Harrington, Tao Zhang, Mark Osborne and Anis Rahman

250

Autumn tickle effectively controls wild radish (Raphanus raphanistrum) in a wheat – lupin rotation. Abul Hashem, Aik Cheam, Harmohinder Dhammu, David Bowran and Terry Piper

255

Manipulation of wild radish emergence to accelerate seedbank decline: preliminary findings. C. Murphy, D. Lemerle, R. Medd and B. Collis

256

Best practice management (BPM) for thistles on the northern tablelands of NSW and its potential in weed research. Mark G. Trotter and Brian M. Sindel

261

Annual grass and broadleaf control in pastures. Peter Dowling and Barney Milne

266

Selective spray-topping, a new technique for controlling broadleaved weeds in cereals. Greg Madafiglio, Richard Medd and Peter Cornish

269

Lucerne seedling responses to residual herbicides used in grain farming systems. John Churchett, Steve Walker and David Lloyd

273

WEED MANAGEMENT AND ECOLOGY: NATURAL ECOSYSTEMS

Integrating herbicide use with biological control of bitou bush. Nigel Ainsworth and Royce Holtkamp

275

Management of giant Parramatta grass (Sporobolus indicus var. major) on roadsides. Andrew Storrie and Tony Cook

279

Distribution of Myrsiphyllum asparagoides, in relation to environmental parameters within the You Yangs Regional Park. Rodney Thomas and John Miller

284

“Best-practice” management strategies for the south African weed, bitou bush (Chrysanthemoides monilifera ssp. rotundata). John Vranjic and Richard Groves

288

Reducing the fitness of the fittest: how to control a Chrysanthemoides monilifera ssp. monilifera (Norlich) invasion. Rachel Melland, Nigel Ainsworth and Richard T. Roush

294

HERBICIDES AS WEED MANAGEMENT TOOLS

New uses for glyphosate. G. Diatloff

299

Selective use of Eclipse* in lupin in Western Australia. Daniel Dixon

302

The selectivity of flumetsulam to chickpeas, lentils and vetch var. popany. Robert Dorigo

306

Tebuthiuron soil spot provides excellent woody weed control. David Gillett and Gregory Wells

309

Herbicide plantbacks are shorter in northern Australia. Gregory Wells

312

Herbiguide: a computer program for weed and pest control information. John Moore

316

The behaviour of Spinnaker® (imazethapyr) in soils. Michelle L. Kennedy, Philip Eberbach and Jeff Evans

317

Expression of arylacylamidase in transgenic plant. Kiyoshi Hagiwara

318

BIOLOGICAL CONTROL OF WEEDS

Progress on the rearing, release and establishment of the gorse spider mite, Tetranychus lintearius Dufour, for the biological control of gorse in Australia. J.E. Ireson, A.H. Gourlay, R.M. Kwong, R.J. Holloway, and W.S. Chatterton

320

Towards improved biocontrol of blackberries. Kathy J. Evans, David E. Symon, John R. Hosking et al.

325

Lantana camara biocontrol: Can new technologies help? M.D. Day and M.A. Hannan-Jones

330

Biological control of starfruit (Damasonium minus) in rice fields using mycoherbicide. Farzad G. Jahromi, Eric J. Cother, Gavin J. Ash

334

Monitoring the impact of the biological control agent Aculus hyperici on Hypericum perforatum across south eastern Australia. Franz A. Mahr, Gwen Mayo, Nigel Ainsworth and Paul Jupp

335

Biological control of Hypericum androsaemum with Melampsora hypericorum. S.G. Casonato, A.C. Lawrie and D.A. McLaren

339

Impact of the root-crown weevil (Mogulones larvatus) and other biocontrol agents on Paterson’s curse in Australia: An update. A.W. Sheppard, M. Smyth and A. Swirepik

343

What are the key factors affecting the efficacy of the ragwort flea beetle in its control of ragwort? K.J.B. Potter, J.E. Ireson, G.R. Allen and R.J. Holloway

347

STRATEGIC APPROACHES TO WEED MANAGEMENT: WORKING TOGETHER

A survey of weeds of winter crops in Australia. Yohannes Alemseged, Randall Jones and Richard Medd

349

Taking responsibility… communities drive pest management planning for local government. Diane Ward and Peter James

351

Weed management planning – the Queensland approach. Bruce Wilson, Wendy Lazzarini, Jef Cummings and Jim Willmott

355

Weedplan: structure, implementation and impacts on weed management in Tasmania. Andrew Bishop and Alan Harradine

359

WEED SCIENCE: ARE WE DOING IT RIGHT?

Weed science doesn’t have to be a contradiction in terms! Roger Cousens

364

WEED MANAGEMENT AND ECOLOGY: CROPS AND PASTURES

Utilising crop residues to control weeds. E. Jones, R.S. Jessop, B.M. Sindel and Anne Hoult

373

The Vulpia (silvergrass) complex in the southern WA agricultural region. C. Loo, P.S. Cocks and S.B. Powles

377

Mulch management for weed control and improved crop quality. Matt Sherriff, Phillip Frost and Ian Macleod

378

Weed management in sweet corn. Phillip Frost, Matt Sherriff and Ian Macleod

383

Control of black nightshade and other weeds in potatoes. Ian Macleod, Matt Sherriff and Phillip Frost

384

Weed management in processing peas. Ian Macleod, Matt Sherriff and Phillip Frost

385

Weed management in pumpkins and other cucurbits. Matt Sherriff, Phillip Frost and Ian Macleod

386

Weed management in pyrethrum. Matt Sherriff, Phillip Frost and Ian Macleod

387

WEED MANAGEMENT AND ECOLOGY: NATURAL ECOSYSTEMS

Population dynamics of Vulpia in exotic and native ranges. W.M. Lonsdale, P.M. Dowling and J. Vitou

389

‘Weeds by nature’: the plants of Macquarie Island. Mark Fountain, Alan Macfadyen, Natalie Papworth and Jim Cane

392

Control of introduced plants in the Galapagos Islands. M.R. Gardener, A. Tye and S.R. Wilkinson

396

Competitive exclusion of an endangered shrub by an environmental weed. Anthony J. Willis and Richard H. Groves

401

HERBICIDES AS WEED MANAGEMENT TOOLS

Clomazone: a new herbicide for broadleaf and grass weed control for various crops in Australia. Ian Macleod, Ian Pegg, Matthew Sherriff, Phillip Frost and Paul Yeates

403

Evaluation of selective herbicides for control of exotic grasses in remnant native grasslands in southern Australia. Chris Nazer and Jane Carder

406

Environmental fate of atrazine applied pre- and post-planting in a Eucalyptus nitens plantation in Tasmania, AustraliaChristopher Barnes and Greg Holz

411

Review of state legislative controls on herbicide use with respect to dose rates. Tom Nordblom and Richard W. Medd

418

Control of bluebell creeper (Sollya heterophylla) with herbicides. G.H. Pritchard

423

BIOLOGICAL CONTROL OF WEEDS

An overview of the establishment, distribution and efficacy of biological control agents for ragwort, Senecio jacobaea L., in Tasmania. J.E. Ireson, R.J. Holloway, W.S. Chatterton and S.M. Leighton

425

The prevalence of seed damage by the introduced bruchid, Penthobruchus germaini (Coleoptera: Bruchidae), a biological control for parkinsonia, (Parkinsonia aculeata), in far north and central Queensland. Catherine Lockett, Emma Gray and Graham Donnelly

431

Distribution and impact of the mature seed feeding bruchid, Penthobruchus germaini on Parkinsonia aculeata in northern Australia. Bert Lukitsch and Andrea Wilson

436

Pathogens as biological control agents for weeds: CRC achievements and challenges. Louise Morin and Bruce A. Auld

441

Cinnabar moths teach important lesson. R.M. Kwong, K.M. Green and D.A. McLaren

445

Biological control of ragwort using the ragwort stem and crown boring moth, Cochylis atricapitana, and a school education programme in Tasmania. J.E. Ireson, R.J. Holloway, W.S. Chatterton and S.M. Leighton

446

A preliminary study on the effect of herbicides on the adult stage of the ragwort flea beetle, Longitarsus flavicornis (Stephens). Mark Boersma and John Ireson

447

Biological control of spear thistles (Cirsium vulgare) in southern Australia. Brad Roberts

448

HERBICIDE RESISTANCE: THE REAL Y2K BUG?

Modelling the population genetics and dynamics of multiple- and cross-resistance in Lolium rigidum. Paul Neve, Art Diggle and Stephen Powles

450

Herbicide resistance in weeds of southern Australia: why are we the worst in the world? Christopher Preston, Richard T. Roush, and Stephen B. Powles

454

The extent of herbicide resistant annual ryegrass in the WA cropping belt. Rick Llewellyn and Stephen Powles

460

CAWSS ORATION

Needed: New paradigms for weed control. Jonathan Gressel

462