DOCSLIB.ORG

Selecting Potential Non-Target Species for Host Range Testing of Eadya Paropsidis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Selecting Potential Non-Target Species for Host Range Testing of Eadya Paropsidis Benefits and challenges of insect biocontrol 179 Selecting potential non-target species for host range testing of Eadya paropsidis T.M. Withers1, G.R. Allen2 and C.A.M. Reid3 1Scion, Private Bag 3020, Rotorua 3046, New Zealand, 2School of Land & Food/TIA, University of Tasmania, Private Bag 54, Hobart TAS 7001, Australia 3Entomology Dept., Australian Museum, 6 College Street, Sydney, NSW 2010, Australia Corresponding author: [email protected] Abstract Classical biological control is proposed for Paropsis charybdis (Coleoptera: Chrysomelidae: Chrysomelinae), a eucalypt pest established in New Zealand. The Australian solitary larval endoparasitoid Eadya paropsidis (Hymenoptera: Braconidae) is under investigation. A potential non-target species list was compiled for host range testing. There are no endemic species of paropsines in the New Zealand fauna, only invasive pest beetles. The most closely related endemic beetles to the paropsines are Chrysomelinae in the genera Allocharis, Aphilon, Caccomolpus, Chalcolampra and Cyrtonogetus. Little is known about these species. New Zealand has also introduced 12 beneficial chrysomelid weed biological control agents, which include Chrysomelinae and their sister group the Galerucinae. One endemic beetle, six beneficial beetles and two pest beetles are listed as the highest priority species for host specificity testing. Keywords biological control, host specificity testing, Chrysomelidae, paropsine. INTRODUCTION Host range testing prior to introducing a classical biological control agent, and secondly by the biological control agent provides an estimate of feasibility of obtaining laboratory colonies of the risk of negative impacts on non-target species the non-target species for testing. During host Barratt et al. (1999). Phylogeny is a valuable range testing, any new information gathered starting point for predicting and assessing the (such as attack by the proposed agent on one field host range of a parasitoid (Hoddle 2004), of the non-target species) may alter the type but other criteria such as ecological similarities or extent of testing required, and potentially are also very important (Kuhlmann et al. 2006). reduce or increase the final list of non-target Kuhlmann et al. (2006) proposed developing an species that are actually screened (Kuhlmann et initial list of all potential non-target species based al. 2006). This approach will be closely followed on phylogenetic affinities, ecological similarity to for obtaining a list of non-targets for host range the target, and socioeconomic considerations. testing of Eadya paropsidis Huddleston & Short This list is then filtered by spatial, temporal and (Hymenoptera: Braconidae). biological attributes such as size that might make Paropsis charybdis Stål is a eucalypt defoliator a species effectively inaccessible to the proposed from Australia that has been present in New New Zealand Plant Protection 68: 179-186 (2015) www.nzpps.org © 2015 New Zealand Plant Protection Society (Inc.) www.nzpps.org Refer to http://www.nzpps.org/terms_of_use.html Benefits and challenges of insect biocontrol 180 Zealand (NZ) since 1916 (Bain & Kay 1989) (G.R. Allen, unpublished data). The peak adult and continues to be the most significant pest of stage in December coincides with the peak early eucalypts throughout the country. In particular instar larval stage of many paropsines, including Eucalyptus nitens (Deane et Maiden) Maiden the abundant P. agricola (Rice 2005b). In 2014 plantations from Southland to the central North Eadya paropsidis was imported into containment Island can be heavily defoliated, and numerous in NZ for rearing so that host range testing could other Eucalyptus species in warmer regions are begin. This paper outlines the process for developing also highly palatable to the pest. The cost of a list of non-target species for host range testing. managing P. charybdis (Withers et al. 2013) is a risk for new forest plantations being developed METHODS for timber, pulp and paper. Egg parasitoids of An analysis of the NZ coleopteran fauna and P. charybdis have proven inadequate for published phylogenies was conducted to establish population suppression (Mansfield et al. 2011). which species of Chrysomelidae present in NZ had Tasmania was selected as the source area for a the closest taxonomic affinities to P. charybdis. To renewed search for natural enemies of P. charybdis, reduce all these potential non-target species down because this species outbreaks occasionally there to a testing list, the “filters” of spatial, temporal and (De Little 1989). Also Tasmania is known to biological attributes were then applied. Spatially, be a good climatic match to plantation forest those species present in the same or overlapping areas of NZ (Murphy 2006). Three years of field habitats to P. charybdis can be identified, but and laboratory research identified the most any non-target species cannot be ruled out at promising agent to target first generation larvae this stage because there is no information on the of P. charybdis as the parasitoid, E. paropsidis propensity for E. paropsidis to search for hosts in (Withers et al. 2012). other habitats. Furthermore, P. charybdis has a Eadya paropsidis is a solitary larval nationwide distribution in NZ, wherever eucalypts koinobiont parasitoid specific to Paropsis and are grown, which includes trees on the margin of Paropsisterna species (Coleoptera: Chrysomelidae: other habitats. Temporally, species can be filtered Chrysomelinae) in Australia (Rice 2005a). It is down to those with larvae present when the adult a medium sized (ca 10 mm) black wasp with a parasitoid E. paropsidis will be active. The target bright orange head. Eadya paropsidis oviposits pest P. charybdis is broadly bivoltine in NZ. Larvae small (0.16 mm), hydropic eggs directly into are present from November to December, and the haemocoel of its hosts, and can attack all February to March (Bain & Kay 1989; Murphy & larval instars (Rice 2005b). Eggs of E. paropsidis Kay 2000; Jones & Withers 2003), with overlapping hatch in around 5 days at 22°C (Rice 2005a). adult generations. Developmental rates of E. paropsidis from egg Rice (2005b) documented adult E. paropsidis insertion in the host to pupation in Paropsisterna activity in the field from adult emergence traps, agricola (Chapius) have been determined over a malaise traps and parasitised larvae collections range of temperatures and average 21 days at 20°C and found adults to be active from early December (Rice & Allen 2009). Eadya paropsidis emerges to early February but peaking in December. from the host’s prepupal stage, spins a silk cocoon, Adult E. paropsidis collected in the field live for and then undergoes an obligate pupal diapause a maximum of 24 days in the laboratory (Rice for around 10 months until the following summer 2005a). Based on climate matching the phenology (Rice 2005a). Information (Rice 2005b) collected of E. paropsidis is expected to be identical in both from one field site over 2 years suggests E. paropsidis countries. In summary, only non-target species is univoltine in Tasmania, with adults present in with larvae present in early to mid summer are November and December. Recent field collections under likelihood of attack. reveal it is widely distributed from sea level The final filter to be applied to predict risk to (near Hobart) to 600 m (near Cradle Mountain) non-target species is biological attributes. Size is © 2015 New Zealand Plant Protection Society (Inc.) www.nzpps.org Refer to http://www.nzpps.org/terms_of_use.html Benefits and challenges of insect biocontrol 181 the most obvious. Eadya paropsidis has been reared NZ. Beetles that feed on Acacia in NZ include successfully in the laboratory on a wide range of host Peltoschema sp. (Kuschel 1990; Reid 2006) larval sizes, with ovipostion into hosts ranging in size and Dicranosterna semipunctata (Chapius). from first instar P. agricola (ca 0.5 mg) through to The former has a much smaller body size than final instar P. charybdis (ca 120 mg) (G.R. Allen, P. charybdis, whereas the latter has a similar unpublished data). Eadya paropsidis prefers early body size and phenology to P. charybdis, and the instars of P. agricola to parasitise and reaches on first generation larvae feed on new phyllodes in average around 26-36 mg pupal weight in this December (Murray & Withers 2011). host (G.R. Allen unpublished data; Rice 2005b). The phylogenetic relatedness of the target Minimum viable host size limits have not yet been species to other Chrysomelidae in NZ, is an ascertained so non-target species cannot be ruled important consideration for selecting non- out at this stage based on larval size. The only target species for testing. The introduced beetle biological attributes required for non-target larvae P. charybdis, belongs to the genus Paropsis, with are that they have a leaf feeding mode (E. paropsidis approximately 70 species, 68 in Australia and searches on eucalypt leaves for host larvae), and are 2 in New Guinea (Reid 2006). This is one of exposed during the day when E. paropsidis is active. 11 closely related genera known in Australia as Potential non-target species present in NZ are paropsines (Reid 2006; Jurado-Rivera et al. 2009). taken through these filters to produce a revised list There are no native NZ paropsines, apart from of species for host range testing against E. paropsidis. the introduced pests already mentioned. The paropsines are a clade of genera in the chrysomelid RESULTS AND DISCUSSION subfamily Chrysomelinae, which includes more Categories for consideration of non-target species than 120 genera and 4000 species worldwide. The categories used for selecting an initial test Larvae of Chrysomelinae feed on leaves or list include ecological similarities, phylogenetic rarely flowers. New Zealand has approximately relatedness and safeguarding of beneficial insects 40 native species of Chrysomelinae in five genera: (Kuhlmann et al. 2006). Allocharis, Aphilon, Caccomolpus, Chalcolampra The ecological similarity category includes and Cyrtonogetus (Reid 2006). These genera form beetles with external leaf-feeding larvae that feed a separate clade or clades from paropsines and on Eucalyptus spp.
Load more

Recommended publications
  • Molecular Cloning and Expression Profiles of Thermosensitive TRP Genes in Agasicles Hygrophila
    insects Article Molecular Cloning and Expression Profiles of Thermosensitive TRP Genes in Agasicles hygrophila Dong Jia 1, Zhouyu Ji 1, Xiaofang Yuan 1, Bin Zhang 2, Yanhong Liu 1 , Jun Hu 1, Yuanxin Wang 1, Xianchun Li 3,* and Ruiyan Ma 1,* 1 College of Plant Protection, Shanxi Agricultural University, Taigu 030801, China; [email protected] (D.J.); [email protected] (Z.J.); [email protected] (X.Y.); [email protected] (Y.L.); [email protected] (J.H.); [email protected] (Y.W.) 2 College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; [email protected] 3 Department of Entomology and BIO5 Institute, University of Arizona, Tucson, AZ 85721, USA * Correspondence: [email protected] (X.L.); [email protected] (R.M.) Received: 29 June 2020; Accepted: 11 August 2020; Published: 13 August 2020 Simple Summary: The increase of hot days with temperatures over 37 ◦C in southern China due to global warming has led to summer collapse of the alligator weed flea beetle, an introduced biological agent for the invasive alligator weed. To promote understanding of the beetle’s adaption/tolerance to hot temperatures, we obtained TRPA1, Painless, and Pyrexia, three thermosensitive transient receptor potential channel genes from the beetle, and analyzed their expression patterns across different developmental stages and hot temperatures. Their constitutive expressions were dramatically different from each other and stage-specific. As temperature increased, their expressions in eggs elevated to their peak levels at 30 or 37.5 ◦C, and then fell back to their preferred temperature levels at temperatures > their peak temperatures. These results imply that (1) they may have different and stage-specific roles in perceiving high temperatures/chemicals and mediating the corresponding responses; and (2) their expressions may be decoupled from their activation.
    [Show full text]
  • Cellulosic Energy Cropping Systems Douglas L
    WILEY SERIES IN RENEWABLE RESOURCES Cellulosic Energy Cropping Systems Douglas L. Karlen Editor Cellulosic Energy Cropping Systems Wiley Series in Renewable Resources Series Editor Christian V. Stevens – Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium Titles in the Series Wood Modification – Chemical, Thermal and Other Processes Callum A. S. Hill Renewables – Based Technology – Sustainability Assessment Jo Dewulf & Herman Van Langenhove Introduction to Chemicals from Biomass James H. Clark & Fabien E.I. Deswarte Biofuels Wim Soetaert & Erick Vandamme Handbook of Natural Colorants Thomas Bechtold & Rita Mussak Surfactants from Renewable Resources Mikael Kjellin & Ingegard¨ Johansson Industrial Application of Natural Fibres – Structure, Properties and Technical Applications Jorg¨ Mussig¨ Thermochemical Processing of Biomass – Conversion into Fuels, Chemicals and Power Robert C. Brown Biorefinery Co-Products: Phytochemicals, Primary Metabolites and Value-Added Biomass Processing Chantal Bergeron, Danielle Julie Carrier & Shri Ramaswamy Aqueous Pretreatment of Plant Biomass for Biological and Chemical Conversion to Fuels and Chemicals Charles E. Wyman Bio-Based Plastics: Materials and Applications Stephan Kabasci Introduction to Wood and Natural Fiber Composites Douglas Stokke, Qinglin Wu & Guangping Han Forthcoming Titles Cellulose Nanocrystals: Properties, Production and Applications Wadood Hamad Introduction to Chemicals from Biomass, 2nd edition James Clark & Fabien Deswarte Lignin and Lignans as Renewable Raw Materials:
    [Show full text]
  • Trunk Road Estate Biodiversity Action Plan
    Home Welsh Assembly Government Trunk Road Estate Biodiversity Action Plan 2004-2014 If you have any comments on this document, its contents, or its links to other sites, please send them by post to: Environmental Science Advisor, Transport Directorate, Welsh Assembly Government, Cathays Park, Cardiff CF10 3NQ or by email to [email protected] The same contact point can be used to report sightings of wildlife relating to the Trunk Road and Motorway network. Prepared by on behalf of the Welsh Assembly Government ISBN 0 7504 3243 8 JANUARY 2004 ©Crown copyright 2004 Home Contents Foreword by Minister for Economic Development and Transport 4 Executive Summary 5 How to use this document 8 Introduction 9 Background to biodiversity in the UK 10 Background to biodiversity in Wales 12 The Trunk Road Estate 13 Existing guidance and advice 16 TREBAP development 19 Delivery 23 Links to other organisations 26 The Plans 27 Glossary 129 Bibliography and useful references 134 Other references 138 Acknowledgements 139 3 Contents Foreword FOREWORD BY THE MINISTER FOR ECONOMIC DEVELOPMENT AND TRANSPORT The publication of this Action Plan is both a recognition of the way the Assembly Government has been taking forward biodiversity and an opportunity for the Transport Directorate to continue to contribute to the wealth of biodiversity that occurs in Wales. Getting the right balance between the needs of our society for road-based transport, and the effects of the Assembly’s road network on our wildlife is a complex and often controversial issue. The Plan itself is designed to both challenge and inspire those who work with the Directorate on the National Assembly’s road network – and, as importantly, to challenge those of us who use the network to think more about the wildlife there.
    [Show full text]
  • Paropsine Beetles (Coleoptera: Chrysomelidae) in South-Eastern Queensland Hardwood Plantations: Identifying Potential Pest Species
    270 Paropsine beetles in Queensland hardwood plantations Paropsine beetles (Coleoptera: Chrysomelidae) in south-eastern Queensland hardwood plantations: identifying potential pest species Helen F. Nahrung1,2,3 1School of Natural Resource Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia; and 2Horticulture and Forestry Science, Queensland Department of Primary Industries and Fisheries, Gate 3, 80 Meiers Road, Indooroopilly, Queensland 4068, Australia 3Email: [email protected] Revised manuscript received 17 May 2006 Summary The expansion of hardwood plantations throughout peri-coastal Australia, often with eucalypt species planted outside their native Paropsine chrysomelid beetles are significant defoliators of ranges (e.g. E. globulus Labill. in Western Australia; E. nitens Australian eucalypts. In Queensland, the relatively recent (Deane and Maiden) Maiden in Tasmania), resulted in expansion of hardwood plantations has resulted in the emergence unpredicted paropsine species emerging as pests. For example, of new pest species. Here I identify paropsine beetles collected C. agricola (Chapuis) was not considered a risk to commercial from Eucalyptus cloeziana Muell. and E. dunnii Maiden, two of forestry but became a significant pest of E. nitens in Tasmania the major Eucalyptus species grown in plantations in south-eastern (de Little 1989), and the two most abundant paropsine species Queensland, and estimate the relative abundance of each (C. variicollis (Chapuis) and C. nobilitata (Erichson)) in paropsine species. Although I was unable to identify all taxa to E. globulus plantations in WA were not pests of native forest species level, at least 17 paropsine species were collected, about there (compare Selman 1994; Loch 2005), nor were they initially one-third of which have not been previously associated with considered pests of E.
    [Show full text]
  • Methods and Work Profile
    REVIEW OF THE KNOWN AND POTENTIAL BIODIVERSITY IMPACTS OF PHYTOPHTHORA AND THE LIKELY IMPACT ON ECOSYSTEM SERVICES JANUARY 2011 Simon Conyers Kate Somerwill Carmel Ramwell John Hughes Ruth Laybourn Naomi Jones Food and Environment Research Agency Sand Hutton, York, YO41 1LZ 2 CONTENTS Executive Summary .......................................................................................................................... 8 1. Introduction ............................................................................................................ 13 1.1 Background ........................................................................................................................ 13 1.2 Objectives .......................................................................................................................... 15 2. Review of the potential impacts on species of higher trophic groups .................... 16 2.1 Introduction ........................................................................................................................ 16 2.2 Methods ............................................................................................................................. 16 2.3 Results ............................................................................................................................... 17 2.4 Discussion .......................................................................................................................... 44 3. Review of the potential impacts on ecosystem services .......................................
    [Show full text]
  • Biology of Chrysophtharta Agricola (Coleoptera, Chrysomelidae), a Pest of Eucalyptus Plantations in South-Eastern Australia
    Australian Forestry 2004 Vol. 67, No. 1 pp. 59–66 59 Biology of Chrysophtharta agricola (Coleoptera, Chrysomelidae), a pest of Eucalyptus plantations in south-eastern Australia Helen F. Nahrung CRC for Sustainable Production Forestry, GPO Box 252-12, Hobart, Tasmania 7001, Australia, and School of Agricultural Science, University of Tasmania, GPO Box 252-54, Hobart, Tasmania 7001, Australia Current address: School of Natural Resource Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia Email: [email protected] Revised manuscript received 10 September 2003 Summary which had been identified by Chapuis as C. bimaculata. Blackburn (1899) reported that ‘it is difficult to find two specimens absolutely Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae) alike’, which may reflect confusion between teneral (i.e. an adult is a pest of eucalypt production forests in south-eastern Australia. with a soft cuticle, as when it has recently emerged from the pupa) Biological characteristics including high fecundity and adult and mature beetles, as described by de Little (1979) and Selman longevity result in the production of large numbers of offspring, (1994b). Weise (1901) changed its generic placement from despite high levels of offspring mortality from natural enemies. Paropsis to Chrysophtharta Weise, and also erected the sub-tribe Collection records for C. agricola indicate a host range of over Paropsina to which Chrysophtharta belongs (Kelly and Reid 20 eucalypt species and a geographic distribution from northern 1999). The type species for the genus was designated Paropsis New South Wales to southern Tasmania. This paper provides nobilitata Erichson by Kelly and Reid (1999). A taxonomic key estimates of foliage consumption by larvae and reviews the biology to species was produced by de Little (1979), which describes the of C.
    [Show full text]
  • Biological Control of St John's Wort Using Chrysolina Leaf Beetles (DSE
    June 1999 Biological control of St John's wort LC0152 with the chrysolina leaf beetles ISSN 1329-833X Keith Turnbull Research Institute (Frankston) Common and scientific names Pupae - in globular cells in the soil at up to 5 cm depth. St John’s wort leaf beetles Life cycle Chrysolina hyperici (Förster) Females lay eggs on the undersides of leaves or leaf buds Chrysolina quadrigemina (Suffrian) in autumn. C. quadrigemina larvae emerge after about 3 Background weeks and overwinter as larvae. C. hyperici overwinters in the egg stage. Larvae consume the young leaves and buds St John’s wort, Hypericum perforatum, was introduced in of procumbent autumn and winter growth. Larger larvae the Ovens Valley of Victoria as a medicinal plant in the leave the plant during the day and return to feed at night. 1860s. It spread rapidly and was well established by the When mature, they pupate in the soil at a depth of a few early 1900s. It is a serious weed of improved pastures, centimetres. The pupal stage lasts 2 to 3 weeks and adults roadsides and neglected areas in north east Victoria and is emerge in the spring. Adult beetles defoliate the erect an increasing problem in dry forests and woodlands. In spring plants and enter a resting stage (aestivation or natural areas it is a serious environmental weed which can diapause) under the bark of trees during summer. out-compete other ground storey plants. St John’s wort is a Regionally Prohibited Weed in the Corangamite and Port Phillip West Catchment and Land Protection Regions, and a Regionally Controlled Weed in all other areas of Victoria except Mallee CaLP Region.
    [Show full text]
  • Coleoptera: Chrysomelidae) and the Paropsine Threat to Eucalyptus in New Zealand
    Biological Control of Paropsis charybdis Stål (Coleoptera: Chrysomelidae) and the Paropsine Threat to Eucalyptus in New Zealand A Thesis submitted in fulfilment of the requirements for the Degree of Doctor of Philosophy in the University of Canterbury by Brendan Dene Murphy New Zealand School of Forestry University of Canterbury 2006 TABLE OF CONTENTS ABSTRACT v ACKNOWLEDGEMENTS vi ERRATA vii CHAPTERS Chapter 1. Biological Control of Paropsis charybdis Stål and the Paropsine Threat to Eucalyptus in New Zealand.................................................................................................... 1 Chapter 2. The Collection, Importation, and Release of Tasmanian Enoggera nassaui for Biological Control of Paropsis charybdis............................................................................. 8 Chapter 3. Molecular Detection of Enoggera nassaui Strains using the Mitochondrial DNA Gene, Cytochrome Oxidase I ............................................................................................... 22 Chapter 4. Field and Bioassay Assessment of the Host Range .................................................. 32 Chapter 5. Phylogenetic Reconstruction of Tasmanian Chrysophtharta ..................................45 Chapter 6. Assessment of Paropsine Fecundity as an Indicator................................................. 59 Chapter 7. Testing the Parasitoid Host Range and Reproductive Output Hypotheses against Dicranosterna semipunctata ...............................................................................................
    [Show full text]
  • EPPO Reporting Service
    ORGANISATION EUROPEENNE EUROPEAN AND MEDITERRANEAN ET MEDITERRANEENNE PLANT PROTECTION POUR LA PROTECTION DES PLANTES ORGANIZATION EPPO Reporting Service NO. 1 PARIS, 2021-01 General 2021/001 New data on quarantine pests and pests of the EPPO Alert List 2021/002 Update on the situation of quarantine pests in the Russian Federation 2021/003 Update on the situation of quarantine pests in Tajikistan 2021/004 Update on the situation of quarantine pests in Uzbekistan 2021/005 New and revised dynamic EPPO datasheets are available in the EPPO Global Database Pests 2021/006 Anoplophora glabripennis eradicated from Austria 2021/007 Popillia japonica is absent from Germany 2021/008 First report of Scirtothrips aurantii in Spain 2021/009 Agrilus planipennis found in Saint Petersburg, Russia 2021/010 First report of Spodoptera frugiperda in Syria 2021/011 Spodoptera frugiperda found in New South Wales, Australia 2021/012 Spodoptera ornithogalli (Lepidoptera Noctuidae - yellow-striped armyworm): addition to the EPPO Alert List 2021/013 First report of Xylosandrus compactus in mainland Spain 2021/014 First report of Eotetranychus lewisi in mainland Portugal 2021/015 First report of Meloidogyne chitwoodi in Spain 2021/016 Update on the situation of the potato cyst nematodes Globodera rostochiensis and G. pallida in Portugal Diseases 2021/017 First report of tomato brown rugose fruit virus in Belgium 2021/018 Update on the situation of tomato brown rugose fruit virus in Spain 2021/019 Update on the situation of Acidovorax citrulli in Greece with findings
    [Show full text]
  • Chrysomela 43.10-8-04
    CHRYSOMELA newsletter Dedicated to information about the Chrysomelidae Report No. 43.2 July 2004 INSIDE THIS ISSUE Fabreries in Fabreland 2- Editor’s Page St. Leon, France 2- In Memoriam—RP 3- In Memoriam—JAW 5- Remembering John Wilcox Statue of 6- Defensive Strategies of two J. H. Fabre Cassidine Larvae. in the garden 7- New Zealand Chrysomelidae of the Fabre 9- Collecting in Sholas Forests Museum, St. 10- Fun With Flea Beetle Feces Leons, France 11- Whither South African Cassidinae Research? 12- Indian Cassidinae Revisited 14- Neochlamisus—Cryptic Speciation? 16- In Memoriam—JGE 16- 17- Fabreries in Fabreland 18- The Duckett Update 18- Chrysomelidists at ESA: 2003 & 2004 Meetings 19- Recent Chrysomelid Literature 21- Email Address List 23- ICE—Phytophaga Symposium 23- Chrysomela Questionnaire See Story page 17 Research Activities and Interests Johan Stenberg (Umeå Univer- Duane McKenna (Harvard Univer- Eduard Petitpierre (Palma de sity, Sweden) Currently working on sity, USA) Currently studying phyloge- Mallorca, Spain) Interested in the cy- coevolutionary interactions between ny, ecological specialization, population togenetics, cytotaxonomy and chromo- the monophagous leaf beetles, Altica structure, and speciation in the genus somal evolution of Palearctic leaf beetles engstroemi and Galerucella tenella, and Cephaloleia. Needs Arescini and especially of chrysomelines. Would like their common host plant Filipendula Cephaloleini in ethanol, especially from to borrow or exchange specimens from ulmaria (meadow sweet) in a Swedish N. Central America and S. America. Western Palearctic areas. Archipelago. Amanda Evans (Harvard University, Maria Lourdes Chamorro-Lacayo Stefano Zoia (Milan, Italy) Inter- USA) Currently working on a phylogeny (University of Minnesota, USA) Cur- ested in Old World Eumolpinae and of Leptinotarsa to study host use evolu- rently a graduate student working on Mediterranean Chrysomelidae (except tion.
    [Show full text]
  • Biological Control of Paropsis Charybdis
    No. 227, July 2012 ISSN 1175-9755 BIOLOGICAL CONTROL OF PAROPSIS CHARYBDIS Paropsine beetles (Coleoptera: Chrysomelidae) is not always easy to locate in Tasmania) from which we are extremely diverse and abundant in their native could obtain larvae for experiments. Australian range but have emerged as significant defoliators only since the expansion of managed The next step was to locate Eadya paropsidis. Flying adults plantation forestry, particularly when host trees are were caught “on-the–wing” in E. nitens plantations in planted outside their native range. Since its arrival in northern Tasmania in December 2011 and brought back New Zealand in 1916 Paropsis charybdis has effectively to the laboratory in Hobart for testing. Using a sequential prevented the commercial viability of several favoured no-choice testing method to observe individual females, 9 Eucalyptus species, including Eucalyptus nitens, until the of 10 of the female wasps attacked P. agricola larvae, then successful introduction of the egg parasitoid Enoggera 7 of those 9 also attacked P. charybdis larvae. nassaui (Hymenoptera: Pteromalidae) in 1988. Scion entomologists have been involved intermittently in the Those P. charybdis larvae attacked were quickly shown search for classical biological control agents for Paropsis to be a suitable physiological host for E. paropsidis charybdis for nearly fifty years, and this appears set to development; parasitoid larvae emerged from the continue for at least another two years. paropsine larvae they had killed, and were significantly larger from P. charybdis than from P. agricola. Paropsis charybdis is bivoltine in New Zealand. The Unfortunately over the whole experiment only 8% first generation of eggs are laid in spring from October of E.
    [Show full text]
  • Invasive Plant Management on Anticipated Conservation Benefits: a Scientific Assessment
    CHAPTER 7 Invasive Plant Management on Anticipated Conservation Benefits: A Scientific Assessment Roger L. Sheley,1 Jeremy J. James,2 Mathew J. Rinella,3 Dana Blumenthal,4and Joseph M. DiTomaso5 Authors are 1Ecologist and 2Plant Physiologist, US Department of Agriculture– Agricultural Research Service, Burns, OR 97720, USA; 3Rangeland Management Specialist, US Department of Agriculture–Agricultural Research Service, Miles City, MT 59301, USA; 4Ecologist, US Department of Agriculture–Agricultural Research Service, Fort Collins, CO 80526, USA; and 5Weed Specialist, University of California-Davis, Davis, CA 95616, USA. Correspondence: Roger L. Sheley 67826-A Hwy 205, Burns, OR 97720; [email protected]. Reference to any commercial product or service is made with the understanding that no discrimination is intended and no endorsement by USDA is implied 291 A major weakness in invasive plant “management is our lack of knowledge about the efficacy of various prevention strategies. ” 292 Conservation Benefits of Rangeland Practices Invasive Plant Management on Anticipated Conservation Benefits: A Scientific Assessment 7 Roger L. Sheley, Jeremy J. James, Mathew J. Rinella, Dana Blumenthal, and Joseph M. DiTomaso IntroduCtIon at the same time posing minimal risk to people, property, resources, and the environment. Invasive plant species have many negative impacts on rangelands throughout the world. In recent years, invasive plant management Invasive plants can displace desirable species, has evolved to more frequently incorporate an alter ecological processes, reduce wildlife IPM philosophy, as opposed to focusing on a habitat, degrade riparian systems, and decrease single control option with little consideration productivity (DiTomaso 2000; Masters and of the ecosystem or the side effects of particular Sheley 2001).
    [Show full text]