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VIII International Symposium

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Preface xv
Introduction xvii
Sponsorship xxi
Acknowledgements xxiii
Chapter 1: Opening Address, Keynote Address and Discussion
Opening Address: The reorganization of research and development in New Zealand, and the evolution of biological weed control
J. Longworth
3
Keynote Address: Biological control of weeds— Past, present and future
R. H. Groves
7
Discussion: Should agents that attack native or other non-target plants by used for biological weed control
V. C. Moran and J. H. Hoffmann
13

Chapter 2: Biological Control in Protected Natural Areas

Opening Comments
R. E. Crutwell McFadyen
19
Cactoblastis cactorum: A successful weed control agent in Caribbean, now a past in Florida?
F. D. Bennett and D. H. Habeck
21
Impact of Galerucella pusilla and G. calmariensis (Coleoptera: Chrysomelidae) on field populations of purple loosestrife (Lythrum salicaria)
B. Blossey
27
Biological control of alien plants in natural areas of Hawaii
D. E. Gardner, C. W. Smith and G. P. Markin
35
The suitability of stem—mining weevil, Apion immune (Coleoptera: Apionidae), for biological control of broom (Cytisus scoparius) in New Zealand (Abstract)
H. M. Harman and P. Syrett
41
Purple loosestrife (Lythrum salicaria) in North America: The problem—the solution—a long-term strategy for biological control (Abstract)
S. D. Hight and R. A. Malecki
43
The impact of seed- and pod-feeding insects on Cytisus scoparius
J. R. Hosking
45
A design for a release and monitoring programme of biological control agents on purple loosestrife, Lythrum salicaria, in North America Abstract)
M .M. P. Huso and P. B. McEvoy
53
The impact of introduced heather on the invertebrate fauna: Implications for biological control (Abstract)
V. Keesing
55
Vine-feeding insects of old man’s beard, Clematis vitalba, in New Zealand
R. P. Macfarlane and H. J. van den Ende
57
Can a galll-forming rust furngus control an invasive tree(Abstract)
M. J. Morris
59
Selection of biological control agents for Chrysanthemoides monilifera, a weed of protected natural areas in Australia
J. K. Scott and R. J. Adair
61
An environmental impact assessment for biological control of heather (Calluna vulgaris) in New Zealand
P. Syrett
69
The biological control programme against Mimosa pigra in Australia’s Northern Territory
C. G. Wilson and I. W. Forno
75

Chapter 3: Theory and Evaluation of Biological Control of Weeds-Selecting Agents and Targets

Evolutionary history of pers-enemy associations
L. E. Ehler
83
Searching for weed biological control agents: When to move on? (Abstract)
H. Muller-Scharer, T. M. Lewinsoghn and J. H. Lawton
93
Are particular weeds more amenable to biological control? A reanalysis of mode of reproduction and life history
P. Chaboudez and A. W. Sheppard
95
Predicting effectiveness: Fact and fantasy
J.M. Cullen
103
Progress and problems in introductory biological control of native weeds in the United States
C. J. DeLoach
111
Is theory of any value in the practical selection of biological control agents for weeds? (Abstract)
G. B. Dennill
123
The predictability of insect host plant utilization from feeding tests and suggested improvements for screening weed biological control agents
P. Harris and P. McEvoy
125
The role of phylogenetically young taxa in formation of new weeds: Coenotic regulations of the coevolution of phytophages
O. V. Kovalev
133
Picking the target: A revision of McClay’s scoring system to determine the suitability of a weed for classical biological control
D. P. Peschken and A. S. McClay
137
Insect communities on Berkheya flower heads: A Southern Hemisphere analogue for Cardueae (Asteraceae)\
M. Redfern and R. A. D. Cameron 145
145
Biological weed control: The plant-insect interaction
N. R. Spencer 153
153
The role of plant dispersion pattern in the success and failure of biological control
N. A. Straw and A. W. Sheppard 161
161
Studies on a sexual stage associated with Colletotrichum gloeosporioides f. sp. aesvhynomene (Abstract)
D. O. TeBeest, C. R. Cisar nad F. W. Spiegal 171
171
The potential for asexual genetic exchange in Colletotrichum gloeosporioides (Abstract)
G. J. Weidemann, D. O. TeBeest, R. J. Chacko and J. C. Correll 173
173
Economics of Biological Control and Evaluating Agent Impact
Economics and the biological control of weeds
G. Greer
177
The biological control of Noogoora burr (Xanthium occidentale) in Queensland: An economic perspective
J. F. Chippendale
185
Biological control of Sesbania punicea with Neodiplogrammus quadrivittatus: predictions of limited success confounded(Abstract)
J. H. Hoffman and V. C. Moran
201
Biological control of Sesbania punicea with Trichaopion lativentre: Diminished seed production reduces seedling recruitment but nor the density of perennial weed (Abstract)
J. H. Hoffmann and V. C. Moran
203
Evaluating the impacy of Rhinocyllus conicus on Carduus nutans in New Zealand
D. Kelly and K. McCallum
205
Beyond "before-and-after." Experimental design and evaluation in classical weed biological control
A. S. McClay
213
Long-term studies and predictive models in the biological control of diffuse knapweed
J. H. Myers
221
Eighty years of weed biological control in South Africa: What have we learnt? (Abstract)
V. C. Moran, and J. H. Hoffmann
225
Colonisation of a stand of smooth tree pear, Opuntia vulgaris (Cactaceae), by Dactylopius ceylonicus (Hemiptera: Dactylopiidae) on the North Cost of New South Wales, Australia
P. R. Sullivan and J. R. Hosking
227
Perspectives on biological control theory from skeletonweed rust (Puccinia chondrillina) on rush skeletonweed (Chondrilla juncea) in California (Abstract)
D. M, Supkoff and J. J. Marois
231

Chapter 4: Biological Control in Aquatic Habitats

The establishment of Cyrtobagous salviniae in Malaysia for the biological control of Salvinia molesta (Abstract)
B.B. Baki, G.S.Lim, S.S. Sastroutomo, O. Yusof, I Mohd Ridzuan and M. H. Julien
235
Australian insects as biological control agents for the submersed aquatic weed, Hydrilla verticillata, in the USA
J. K. Balciunas, M. F. Purcell and D. W. Burrows
237
Australian insects for the biological control of the paperbark tree, Melaleuca quinquenervia, a serious pest of Florida, USA, wetlands
J. K. Balciunas, D. W. Burrows and M. F. Purcell
247
The search in China for potential biological control agents for Eurasian watermilfoil and Hydrilla (Abstract)
J. K. Balciunas
269
A comparison of waterhyacinth and waterlettuce: Growth strategies and biological control in the United States (Abstract)
T. D. Center and F. A. Dray, Jr.
271
Is one biological control agent sufficient to control Pistia stratiotes? (Abstract)
C. J. Cilliers
273
Control of Hydrilla verticillata in New Zealand lake using triploid grass carp
J. S. Clayton, P. D. Champion, and N. H. McCarter
275
Release and establishment of insect biological control agents for Hydrilla verticillata (Abstract)
A. F. Cofrancesco, Jr. and T.D. Center
287
Biological control of floating aquatic weeds in Botswana (Abstract)
I. W. Forno and P. Smith
289
The United States Department of Agriculture, Australian Biological Control Laboratory (Abstract)
M. F. Purcell, J. K. Balciunas and G. Bowman
291
Biological control of the submerged fennel-leaved pondweed, Potamogeton pectanatus (Potamogetonaceae), in South Africa (Abstract
H. J. Schoonbee
293

Chapter 5: Biological Control in Forests

Present status of biological control of European blackberry (Rubus fruticosus aggregate) in Australia
E. Bruzzese
297
Biological control of gorse (Ulex europaeus) in New Zealand (Abstract)
R. L. Hill and A. H. Gourlay
301
A New Zealand insect as a potential biological control agent of gorse overseas
P. W. Holder
303
Biological control of Buddleia davidii (Abstract)
M. Kay
307
Failure in Hawaii of the sawfly, Priophorus morio (Hymenoptera: Tenthredinidae), a biological control agent for Rubus argutus, due to a virus
G. P. Markin and R. F. Nagata
309
Current status of arthropods of the weed gorse, Ulex europaeus, in California (Abstract)
B. D. Perkins
313
Field experiments in forest weed biological control
R. E. Wall
315
Potential role of wound pathogens in manual and mechanical control of woody vegetation (Abstract)
R. E. Wall
319
Variation in Chondrosetereum purpureum, a potential mycoherbicide for forest weeds (Abstract)
R. E. Wall, S. F. Shamoun and A. Ekramoddoullah
321
Status of biological control of gorse in Hawaii (Abstract)
E. R. Yoshioka, R.E. Brown and G. P. Markin
323

Chapter 6: Biological Control in Pasture and Rangelands—Annual Weeds

Mycoherbicide for Xanthium spinosum (Abstract)
B. A. Auld
327
Release of Uromyces heliotropii in Australia: A key agent in the integrated pest management system for common heliotrope
E. S. Delfosse, R. C. Lewis and S. Hasan
329
Biological control of Paterson’s curse: After the injunction (Abstract)
E. S. Delfosse and J. Moorhouse
337
Persistent seed banks, plant fitness and their importance in the control of annual weeds: A study of Echium plantagineum, a winter annual weed of Mediterranean pasture
G. J. Forrester
339
Host-specificity of Uromyces heliotropii, a fungal agent for the biological control of common heliotrope (Heliotropoim europaeum) in Australia (Abstract)
S. Hasan, E. S. Delfosse, E.Aracil and R. C. Lewis
347
Biological control of the Noogoora burr complex with naturally occurring fungi in Australia (Abstract)
L. Morin, B. A. Auls, and J. F. Brown
349
Survey for pathogens of Emex australis in South Africa
R. G. Shival
351
Implications of a preliminary survey on the biological control prospects for the pasture and rangeland weed Bathurst burr, Xanthium spinosum, in Australia
A. J. Wapshere, E. Erb, and L. Bunster
355
Biennial Weeds
Seasonality in Longitarsus jaconaeae: Some implications for biological control o ragwort
D. Delpachitra and R. M. Emberson
363
Isozyme patterns and susceptibility of North America forms of Chondrilla juncea to European strains of the rust fungus, Puccinia chondrillina
S. Hasan, P. Chaboudez, and C. Espiau
367
Effectiveness of the gall mite, Eriophyes chondrillae, as a biological control agent of rush skeleton weed (Chondrilla juncea) seedlings
K. M. Spollen and G. L. Piper
375
Life history of Phrydiuchus tau associated with Mediterranean sage in Idaho, USA
L. M. Wilson and J. P. McCaffrey
381
Thistles and Knapweeds
Host-specificity of the Palearctic weevil, Larinus curtis (Coleoptera: Curculionidae), a natural enemy of Centaurea solstitialis (asteraceae: Cardueae)
L. Fornasari and C. E. Turner
385
Sclerotinia sclerotiorum: A potential mycongerbicide for California thistle, Cirsium arvense, control in permanent pastures? (Abstract)
I. C. Harvey and G. Bourdot
393
The effects of the crown weevil, Trichosirocalus horridus, on the growth of nodding thistle, Carduus nutans
T. M. Keown
395
Sclerotinia sclerotiorum as a potential biological control agent for diffuse knapweed on dry rangelands in interior British Columbia
K. Mortensen and E. J. Hogue
397
Risk assessment of Puccinia jaceae for biological control of starthistles and knapweeds (Abstract)
N. Shishkoff and W. L. Bruckart
403
Biological control of yellow starthistle, Centaurea solstitialis, in North America
C. E. Turner and L. Fornasari
405
Release and establishment of the thistle-head weevil, Rhinocyllus conicus, in Australia
T. L. Woodburn and A. W. Sheppard
415
Perennial Weeds
Rusts for the biological control of leafy spurge (Euphorbia esula) in North America
A. N. G. Holden and P. G. Mahlberg
419
Biological control of "Satan’s bush" (Solanum elaeagnifolium): A leap of faith
T. Olckers and H. G. Zimmerman
425
Surveys of Solanum spp. In South America and their applications in the biological control of Solanum weeds (Abstract)
T. Olkers and P. E. Hulley
429
The search for effective biological control agents in Europe. 2. Leafy and cypress spurge (Abstract)
D. Schroeder and A. Gassmann
431
Shrubs
Heteropsylla sp. (Psyllidae) successfully controls pasture infestations of Mimosa invisa within three years of release in Australia
M. P. Ablin
435
Pathogens attacking groundsel bush Rhinacloa callicrates (Hemipteral: Miridae) for the biological control of Parkinsonia aculeata (Caesalpiniaceae) in Australia (Abstract)
G. P. Donnelly
445
Biological control of Cassinia spp. (Asteracea)
R. H. Holtkamp and M. H. Campbell
447
Biological control of Sida acuta in Australia’s Northern Territory (Abstract)
C. G. Wilson and W. M. Lonsdale
451
Two seed-feeding bruchids as part of an integrated approach for the control of Prosopis spp., mesquite in South Africa (Abstract)
H. G. Zimmermann
453
Progress Reports
Biological control of weeds of importance to the wool industry in southern Australia
E. Bruzzese and J. M. Cullen
457
The status of biological control of weeds in Oregon
E. M. Coombs, D. L. Isaacson and R. B. Hawkes
463
The biological control of Chromolaena odorata in South Africa: A progress report (Abstract)
R. L. Kluge, M. J. Morris and P. M. Caldwell
473
An overview of federal research on biological control of weeds in the Northern Plains area of the United States of America (Abstract)
P. C. Quimby, Jr.
475
Some problem weeds in tropical and sub-tropical Australia and prospects for biological control using fungal pathogens
A. J. Tomley and H. C. Evans
477

Chapter 7: Biological Control in Crops

Controlled environment assessment of a Colletotrichem strain as a mycoherbicide for pitted morning glory control (Abstract)
D. K. Cartwright and G. E. Templeton
485
Host range and evaluation of an isolate of Exserohilum turcicum on some populations of Johnsongrass (Sorghum halepense)
P. Del Serrone and L. Fornasar
487
Present status of the biological control programme for the graminaceous weed Rottboellia cochinchinensis
C. A. Ellison and H. C. Evans
493
Basic data on the biological control of tropical weeds in the genus Sida (Malvaceae): 1. Sida glaziovii
M. A. Garcia, I. Boselli and S. H. Seike
501
Allelopathic herbicide approach to biological control of weeds
J. L. Gnanarethinam and R. M. Meenaskshi
513
Evaluation of Aposphaeria amaranthi as a potential bioherbicide for Amaranthus (Abstract)
A. S. Mintz and G. J. Weidemann
521
Effect of the mycoherbicide, Colletotrichum gloeosporioides sp. Malvae, on control of round-leaved mallow in strawberries (Abstract)
K. Mortensen and R. M. D. Makowski
523
Augmenting rusts and other obligate plant parasites for control of weeds (Abstract)
S. C. Phatak, W. L. Bruckart and R. Charudattan
525
Pathogens attacking Striga hermonthica and their potential as biological control agents
A. A. Abbasher and J. Sauerborn
527
Prospects for the biological control of Cyperus rotundus, purple nutsedge, in Brazil (Abstract)
C. A. D. Teixeira, E. G. Fontes, E. R. Sujii and G. Figueiredo
535

Chapter 8: Agent-Plant Relationships

Pathogens
Pathogens-weed relationships: The practice and problems of host range screening
H. C. Evans
539
A dual pathogen strategy for the biological control of groundsel, Senecio vulgaris (Abstract)
S. G. Hallett, N. D. Paul and P. G. Ayres
553
Host range screening of Puiccinia abrupta var. partheniicola for the biological control of Parthenium hysterophorus in Queensland
A. N. Holde, A. Parker and A. J. Tomley
555
Biology of Phomopsis emicis , a potential biocontrol agent for spiny emex, Emex australis (Abstract)
R. G. Shivas
561
Arthropods
Lessons learned from studies of the insects associated with Ambrosiinae in North America in relation to the biological control of weedy members of this group
R. D. Goeden and W. A. Palmer
656
Trophic interactions between Monzena, mesquite and a microbe: Implications for host-specificity testing of insects of liguminous weeds (Abstract)
J. P. Cuda, H. B. Johnson and C. R. Tischler
575
Host searching behavior of the seed weevil, Melanterius ventralis: Implications for the biological control of Acacia longifolia in South Africa (Abstract)
D. Donnelly
577
The effect of multi-species herbivore on shoot growth in grose, Ulex europaeus
S. V. Fowler and D. Griffin
579
Resources use by Apion aculeatum, a herbivore of inflorescences of Mimosa pigra (Abstract)
T. A. Heard
585
Insect-induced changes in Chromolaena odorata
J. McConnell, M. Marutani and R. Muniappan
587
Co-evaluation of Siam weed, Chromolaena odorata, and its natural ememy, Pareuchaetes pseudoinsulara
R. Muniappan and M. MarutanI
597
The herbivore community on Veratrum album (Lilliaceae) in Central Europe (Abstract)
U. Schaffner
603
Host choice in the field in the genus Larinus (Coleptera: Curculionidae) attacking Onopordum and Cynara (Asteraceae) (Abstract)
Sheppard, A. W., D. T. Briese and I. Michalakis
605

Chapter 9: Strategies for Rearing, Release and Management of Biological Control Agents

Biological control of weed extension programmes in New Zealand
J. M. Grindell
617
Conidiation environment influences fitness of the potential bioherbicide, Colletotrichum truncatem
M. A. Jackson, D. A. and R. J. Bothast
621
Integration of seed-feeding insect and fungi for management of velvetleaf (Abutilon theophasti) seed production
R. J. Kremer
627
Options for biological control of the parasitic weed Orobanche
K. H. Linke, J. Sauerborn and M. C. Saxena
633
Regulating microbial pest control agents in Canada: the first mycoherbicide
R. M. D. McFadyen
649
Legislation and its administration in the approval of agents for biological control in Australia
R. Paton
653
Use of pregelatinized starch and casamino acids to improve the efficacy of Colletotrichum truncatum conidia produced in differing nutritional environments
D. A. Schisler, M. A. Jackson, M. R. McGuire and R. J. Bothast
659
Releases of insects as biological control agents: Their timing and stadium for release, with reference to the Paterson’s curse leaf mining moth, Dialectica scalariella (Lepidoptera: Gracillariidae)
R. C. H. Shepherd
665
Use of an artificial diet for rearing the Mimosa clearwing moth, Camenta mimosa (Abstract)
C. S. Smith and C. G. Wilson
675

Chapter 10: New Approaches to Biological Control of Weeds

Fungal pathogens of weeds collected in the Brazilian tropics and subtropics and their biological control potential
R. W. Barreto and H. C. Evans
679
Current status of the biological control of weeds in Brazil (Abstract)
E. G. Fontes, C. A. S. Teixeira, C. S. S. Pires and E. R. Sujii
693
Use of geographic information systems (GIS) distance measures in managed dispersal of Apion fuscirostre for control of Scotch broom (Cytisus scopsrius)
D. L. Isaacson, G. A Miller and E. M. Coombs
695
Using CLIMEX to predict distribution of alligator weed and its potential for biological control by the flea beetle, Agasicles hygrophila (Abstract)
R. M. D. Makowskr and J. D. Miller
703
The use of computer database during the foreign exploration phase of a biological control programme
W. A. Palmer
705
Genetically designed biological pesticides
D. C. Sands, R. V. Miller, E. J. Ford and K. A. Glass
709
Author Index 715
Appendix 1: Business Sessions 721
Appendix 2: Participants 723
Appendix 3: Symposium Photograph 734

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