DOCSLIB.ORG

APP201955: an Application to Release Tamarixia Triozae As a Biological Control for the Tomato Potato Psyllid (Bactericera Cockerelli)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
APP201955: an Application to Release Tamarixia Triozae As a Biological Control for the Tomato Potato Psyllid (Bactericera Cockerelli) Staff Assessment Report APP201955: An application to release Tamarixia triozae as a biological control for the tomato potato psyllid (Bactericera cockerelli) April 2016 Purpose To release from containment the psyllid parasitoid Tamarixia triozae into New Zealand to assist with the biological control of the tomato potato psyllid (Bactericera cockerelli) Application number APP201955 Application type Notified, full release Applicant Horticulture New Zealand Inc. Date formally received 27 January 2016 2 EPA advice for application APP201955 Executive Summary and Recommendation In January 2015, Horticulture New Zealand Inc. applied to the Environmental Protection Authority (EPA) to introduce the psyllid parasitoid Tamarixia triozae as a biological control agent (BCA) for the tomato potato psyllid (TPP; Bactericera cockerelli). The application was submitted on behalf of Potatoes New Zealand Inc., Tomatoes NZ Inc., Heinz-Wattie’s NZ Ltd, Vegetables NZ Inc., and NZ Tamarillo Growers Association Inc. We examined the efficacy of T. triozae to control TPP and curb transmission of Candidatus Liberibacter solanacearum, the causal agent of Zebra Chip disease, to horticulture crop plants, and the beneficial and adverse effects on the environment, market economy and on Māori and their relationship to the environment. Our assessment found that we consider it likely that the release of T. triozae will improve management of TPP which will support development of new integrated pest management (IPM) programmes. We consider it likely that IPM programmes will reduce applications of broad-spectrum insecticides which will improve the environmental impact of horticulture practices. We also consider the use of T. triozae will benefit Māori who use traditional (organic) pest control methods to cultivate taewa, kūmara and poroporo. We consider reductions in costs to control TPP and Zebra Chip and improvements in yield and crop quality as a result of improved management of TPP to be important to future proof New Zealand’s horticulture industry. We considered the information presented in the application strongly suggests that there is likely to be benefits to the market economy from the release of T. triozae. The applicant considered that the most significant adverse effects of releasing T. triozae are the risks of the parasitoid attacking and parasitizing native psyllids. The applicant presented evidence from host range testing which showed that two native psyllids in the same family as TPP are susceptible to attack. We consider the results to reveal that Trioza panacis is within the physiological host range of T. triozae, however, first–generation development tests showed that parasitoid offspring fitness is compromised by using T. panacis as a host. We argue that this is a low rank host which will not support successive generations of T. triozae. We considered the mortality rate of the other impacted psyllid, T. curta, in the tests. We consider that mortality at the level predicted should be viewed in light of the test conditions and field conditions that T. triozae will encounter, as well as population dynamics of the psyllid in its natural habitat governed by its food plant preferences. We consider that T. triozae will not actively seek out non-target native psyllids anywhere in New Zealand since the parasitoid uses a number of cues to locate TPP. TPP and native psyllids do not share the same host plants and therefore are not commonly found in the same habitat. This creates environmental refuges for native psyllids who are predominantly found in native unmodified habitats away from intensively manged habitats. We note that despite the potential for T. triozae to encounter non-target psyllids in environments that border horticulture crops it is unlikely for the parasitoid to have significant adverse effects on native psyllids. April 2016 3 EPA advice for application APP201955 After completing our risk assessment and reviewing available information, we consider that the cumulative adverse effects of releasing T. triozae to control TPP are negligible and the cumulative benefits significant. We consider that T. triozae meets the minimum standards as stated in the HSNO Act. We recommend that the application be approved. April 2016 4 EPA advice for application APP201955 Table of Contents Executive Summary and Recommendation ........................................................................................ 2 Table of Contents .................................................................................................................................. 4 1. Purpose of this document .......................................................................................................... 6 2. Application process .................................................................................................................... 6 3. Submissions ................................................................................................................................ 6 4. Submissions from DOC and MPI ............................................................................................... 7 5. Background on the target pest - TPP ........................................................................................ 8 Tomato potato psyllid and the pathogen it vectors are serious threats to plants of economic value in the solanaceous family .................................................................................................... 8 6. Description of organism proposed to be introduced ............................................................ 12 7. Risk assessment assumptions ................................................................................................ 14 8. Assessment of the potential benefits and positive effects of introducing T. triozae ........ 15 Potential beneficial effects of T. triozae through reducing TPP pressure ................................... 15 Potential benefits to New Zealand’s market economy by releasing T. triozae and reducing the effects of TPP and Zebra Chip .................................................................................................... 19 9. Assessment of the potential risks and costs associated with the introduction of T. triozae ..................................................................................................................................... 24 Understanding the host range of T. triozae ................................................................................. 24 Our assessment of the potential risks and costs to native and beneficial psyllids from the release of T. triozae ..................................................................................................................... 32 10. Our assessment of the potential indirect adverse effects on ecosystem functions such as food webs .............................................................................................................................. 35 TPP as a shared resource ........................................................................................................... 35 Hyperparasitism of T. triozae and the effects of ‘apparent competition’ ..................................... 35 Tamarixia triozae as a vector or source of disease ..................................................................... 37 Potential for hybridisation ............................................................................................................ 37 Our conclusion of the potential indirect adverse effects.............................................................. 37 11. Conclusion on benefits and risks assessment ...................................................................... 38 12. Relationship of Māori to the environment .............................................................................. 39 13. Minimum Standards .................................................................................................................. 45 Consideration of whether T. troizae is likely to cause any significant displacement of any native species within its natural habitat .................................................................................................. 45 Consideration of whether T. triozae is likely to cause any significant deterioration of natural habitats ........................................................................................................................................ 46 April 2016 5 EPA advice for application APP201955 Consideration of whether T. triozae is likely to cause any significant adverse effects on human health and safety ......................................................................................................................... 46 Consideration of whether T. triozae is likely to cause any significant adverse effect to New Zealand’s inherent genetic diversity ............................................................................................ 46 Consideration of whether T. triozae is likely to cause disease, be parasitic, or become a vector for human, animal or plant disease ............................................................................................. 47 Conclusion on the minimum standards ....................................................................................... 47 14. Recommendation ...................................................................................................................... 47 15. References ................................................................................................................................
Load more

Recommended publications
  • Citrus Flushing Patterns, Diaphorina Citri (Hemiptera: Psyllidae) Populations and Parasitism by Tamarixia Radiata (Hymenoptera: Eulophidae) in Puerto Rico
    36 Florida Entomologist 91(1) March 2008 CITRUS FLUSHING PATTERNS, DIAPHORINA CITRI (HEMIPTERA: PSYLLIDAE) POPULATIONS AND PARASITISM BY TAMARIXIA RADIATA (HYMENOPTERA: EULOPHIDAE) IN PUERTO RICO RICHARD W. H. PLUKE, JAWWAD A. QURESHI AND PHILIP A. STANSLY Department of Entomology and Nematology, University of Florida/IFAS Southwest Florida Research and Education Center, 2686 SR 29N, Immokalee, FL 34142, USA ABSTRACT Discovery of citrus greening disease or Huanglongbing in Brazil and Florida has elevated the vector psyllid, Diaphorina citri (Hemiptera: Psyllidae), to key pest status in both re- gions. Detected in Puerto Rico within 3 years of first detection in Florida, the psyllid ap- peared to be relatively scarce in the Island’s limited citrus and alternate rutaceous host, orange jasmine, Murraya paniculata. Monthly surveys were conducted at 4 locations during 2004 through 2005 to evaluate citrus flushing patterns, psyllid densities, and prevalence of parasitism by Tamarixia radiata. Although low levels of D. citri are known to be established in the high, cool areas of Adjuntas, a total lack of psyllids at the particular study location was attributed to scarcity of flush except for a short period in Feb. Greatest and most prolonged production of new flush, highest psyllid numbers, and greatest incidence of parasitism oc- curred at Isabela, the most coastal location and the only one with irrigated citrus. Favorable climate and irrigation resulted in prolonged availability of new foliage needed to maintain populations of psyllids and consequently its parasitoid. There, apparent parasitism of late instars was estimated to average 70% and approached 100% on 3 different occasions. Tam- arixia radiata also was found parasitizing psyllid nymphs in orange jasmine at the rate of 48% and 77% at Río Piedras and San Juan, respectively, approaching 100% on 5 occasions during spring and summer.
    [Show full text]
  • Melanaphis Sacchari), in Grain Sorghum
    DEVELOPMENT OF A RESEARCH-BASED, USER- FRIENDLY, RAPID SCOUTING PROCEDURE FOR THE INVASIVE SUGARCANE APHID (MELANAPHIS SACCHARI), IN GRAIN SORGHUM By JESSICA CARRIE LINDENMAYER Bachelor of Science in Soil and Crop Sciences Bachelor of Science in Horticulture Colorado State University Fort Collins, Colorado 2013 Master of Science in Entomology and Plant Pathology Oklahoma State University Stillwater, Oklahoma 2015 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY May, 2019 DEVELOPMENT OF A RESEARCH-BASED, USER- FRIENDLY, RAPID SCOUTING PROCEDURE FOR THE INVASIVE SUGARCANE APHID (MELANAPHIS SACCHARI), IN GRAIN SORGHUM Dissertation Approved: Tom A. Royer Dissertation Adviser Kristopher L. Giles Norman C. Elliott Mark E. Payton ii ACKNOWLEDGEMENTS I would like to thank my amazing committee and all my friends and family for their endless support during my graduate career. I would like to say a special thank you to my husband Brad for supporting me in every way one possibly can, I couldn’t have pursued this dream without you. I’d also like to thank my first child, due in a month. The thought of getting to be your mama pushed me to finish strong so you would be proud of me. Lastly, I want to thank my step father Jasper H. Davis III for showing me how to have a warrior’s spirit and to never give up on something, or someone you love. Your love, spirit, and motivational words will always be heard in my heart even while you’re gone.
    [Show full text]
  • ENDOCRINE CONTROL of VITELLOGENESIS in BACTERICERA COCKERELLI (HEMIPTERA: TRIOZIDAE), the VECTOR of 'ZEBRA CHIP' a Dissertat
    ENDOCRINE CONTROL OF VITELLOGENESIS IN BACTERICERA COCKERELLI (HEMIPTERA: TRIOZIDAE), THE VECTOR OF ‘ZEBRA CHIP’ A Dissertation by FREDDY ANIBAL IBANEZ-CARRASCO Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Cecilia Tamborindeguy Committee Members, Ginger Carney Patricia Pietrantonio Robert Coulson Head of Department, David Ragsdale August 2017 Major Subject: Entomology Copyright 2017 Freddy Ibanez-Carrasco ABSTRACT The potato psyllid, Bactericera cockerelli (Šulc), is a phloem-feeding insect with preference for Solanaceae. This insect species transmits the pathogenic bacteria ‘Candidatus Liberibacter solanacearum’ (Lso) the causative agent of zebra chip, an important disease of commercial potatoes in several countries worldwide. The classification of psyllids among the most dangerous vectors has promoted their study, but still many biological processes need to be investigated. As a first step towards the elucidation of vitellogenesis in B. cockerelli, two candidate vitellogenin transcripts were identified and its expression was analyzed in different life stages. Our results showed that in virgin females, BcVg1-like expression increased up to 5 days old; while mating significantly upregulated its expression in 5- and 7-day-old females and also induced oviposition. BcVg6-like transcript was expressed at similar level between females and males and it was not up-regulated by mating. To elucidate the role of juvenile hormone in B. cockerelli Vgs expression, topical applications of juvenile hormone III (JH III) were performed on virgin females, resulting in an upregulation of BcVg1-like expression and an increase in the number of mature oocytes observed in female reproductive organs.
    [Show full text]
  • Candidatus Liberibacter Solanacearum'
    EPPO Datasheet: 'Candidatus Liberibacter solanacearum' Last updated: 2020-04-22 Only Solanaceae haplotypes of ‘Candidatus Liberibacter solanacearum’ are included in the EPPO A1 List. IDENTITY Preferred name: 'Candidatus Liberibacter solanacearum' Authority: Liefting, Perez-Egusquiza & Clover Taxonomic position: Bacteria: Proteobacteria: Alphaproteobacteria: Rhizobiales: Phyllobacteriaceae Other scientific names: Liberibacter psyllaurous Hansen,Trumble, Stouthamer & Paine, Liberibacter solanacearum Liefting, Perez- Egusquiza & Clover Common names: zebra chip disease view more common names online... EPPO Categorization: A1 list more photos... view more categorizations online... EU Categorization: RNQP (Annex IV) EPPO Code: LIBEPS Notes on taxonomy and nomenclature This bacterium was first described from solanaceous plants and psyllids, almost simultaneously in New Zealand and the USA. The name ‘Candidatus Liberibacter psyllaurous (Hansen et al., 2008) was initially proposed, but ‘ Candidatus Liberibacter solanacearum’ (Liefting et al., 2009c) was finally retained as the validly published name. Until now, ‘Ca. L. solanacearum’ has not been cultivated in axenic medium to allow the Koch’s postulates to be verified, hence its ‘Candidatus’ status. The bacterium is genetically diverse and ten haplotypes of ‘Ca. L. solanacearum’ have been described (Nelson et al., 2011, 2013; Teresani et al., 2014; Swisher Grimm and Garczynski, 2019; Haapalainen et al., 2018b; Mauck et al., 2019; Haapalainen et al., 2019; Contreras-Rendón et al., 2019). These haplotypes also differ in their host ranges, psyllid vectors and geographical distributions. In particular, four haplotypes (A, B, F and G) are associated with diseases of potatoes and other solanaceous plants, whereas four others (C, D, E and H-European) are associated with diseases of carrots and other apiaceous crops. Haplotype H European was also described in plants of the family Polygonaceae.
    [Show full text]
  • Biocontrol Program Targets Asian Citrus Psyllid in California's Urban
    REVIEW ARTICLE Biocontrol program targets Asian citrus psyllid in California’s urban areas Two parasitoids of the Asian citrus psyllid, from Pakistan, have been released in Southern California with promising results. by Ivan Milosavljević, Kelsey Schall, Christina Hoddle, David Morgan and Mark Hoddle sian citrus psyllid (ACP), Diaphorina citri Ku- wayama (Hemiptera: Liviidae), has emerged as Abstract Athe most important exotic insect pest of citrus in California. Damage is two-fold. First, psyllids cause In California, Asian citrus psyllid vectors the bacterium Candidatus direct injury to citrus through feeding on phloem juice Liberibacter asiaticus, which causes the lethal citrus disease in immature foliage, deforming the leaves (Halbert and huanglongbing. The top priority for California’s citrus industry has been Manjunath 2004); and second, and more importantly, to diminish the rate of bacterium spread by reducing Asian citrus psyllid they vector the bacterium Candidatus Liberibacter asi- populations in urban areas, where this pest primarily resides. Attempts aticus (CLas), which causes the lethal and untreatable at eradicating and containing the psyllid with insecticides were citrus disease, huanglongbing (HLB), also called citrus unsuccessful. An alternative approach has been a classical biological greening disease. control program using two parasitoids from Pakistan, Tamarixia radiata Characteristic symptoms associated with CLas in- and Diaphorencyrtus aligarhensis, which attack the psyllid nymphs. fection are reduced vigor, foliar discoloration and die- T. radiata has established widely and, in combination with generalist back, misshapen fruit with bitter juice and malformed predators, natural enemies are providing substantial control of psyllids seeds, premature fruit drop, overall yield reductions in urban areas. and, ultimately, tree death (Gottwald 2010).
    [Show full text]
  • Bactericera Cockerelli
    EPPO Datasheet: Bactericera cockerelli Last updated: 2020-10-08 Bactericera cockerelli is a pest in itself (feeding damage), and it transmits ‘Candidatus Liberibacter solanacearum’ to solanaceous plants. IDENTITY Preferred name: Bactericera cockerelli Authority: (Šulc) Taxonomic position: Animalia: Arthropoda: Hexapoda: Insecta: Hemiptera: Sternorrhyncha: Triozidae Other scientific names: Paratrioza cockerelli (Šulc), Trioza cockerelli Šulc Common names: potato psyllid, tomato psyllid view more common names online... EPPO Categorization: A1 list view more categorizations online... more photos... EU Categorization: A1 Quarantine pest (Annex II A) EPPO Code: PARZCO HOSTS Bactericera cockerelli is found primarily on plants within the family Solanaceae. It attacks, reproduces, and develops on a variety of cultivated and weedy plant species (Essig, 1917; Knowlton & Thomas, 1934; Pletsch, 1947; Jensen, 1954; Wallis, 1955), including crop plants such as potato (Solanum tuberosum), tomato (Solanum lycopersicum), pepper (Capsicum annuum), eggplant (Solanum melongena), and tobacco (Nicotiana tabacum), and non-crop species such as nightshade (Solanum spp.), groundcherry (Physalis spp.) and matrimony vine (Lycium spp.). Adults have been collected from plants in numerous families, including Pinaceae, Salicaceae, Polygonaceae, Chenopodiaceae, Brassicaceae, Asteraceae, Fabaceae, Malvaceae, Amaranthaceae, Lamiaceae, Poaceae, Menthaceae and Convolvulaceae, but this is not an indication of the true host range of this psyllid (Pletsch, 1947; Wallis, 1955;
    [Show full text]
  • Bactericera Cockerelli
    Bulletin OEPP/EPPO Bulletin (2013) 43 (2), 202–208 ISSN 0250-8052. DOI: 10.1111/epp.12044 European and Mediterranean Plant Protection Organization Organisation Europeenne et Mediterran eenne pour la Protection des Plantes EPPO Data Sheets on pests recommended for regulation Fiches informatives sur les organismes recommandes pour reglementation Bactericera cockerelli migration from Northern Mexico and the USA. B. cockerelli Identity cannot overwinter in Canada, and is not considered as Name: Bactericera cockerelli (Sulc) established there. In addition, it must be noted that the Synonym: Paratrioza cockerelli Sulc pathogen ‘Candidatus Liberibacter solanacearum’ has never Taxonomic position: Insecta, Hemiptera, Psylloidea, been observed on potatoes or tomatoes in Canada (Ferguson Triozidae & Shipp, 2002; Ferguson et al., 2003). In the USA, The Common names: potato psyllid, tomato psyllid potato psyllid had previously been reported to only occur EPPO code: PARZCO west of the Mississippi River (Richards & Blood, 1933; Phytosanitary categorization: EPPO A1 list no 366 Pletsch, 1947; Wallis, 1955; Cranshaw, 1993; Capinera, Note: B. cockerelli is a pest in itself (feeding damage), but 2001); however, this insect was recently collected on yel- more importantly it transmits ‘Candidatus Liberibacter low sticky traps near potato fields in Wisconsin late in the solanacearum’ to solanaceous plants. summer of 2012 (Henne et al., 2012), which constitutes the first documentation of this insect east of Mississippi. EPPO region: absent. Hosts EU: absent. Bactericera
    [Show full text]
  • Tamarixia Radiata (Hymenoptera: Eulophidae) 3 Diaphorina Citri (Hemiptera: Liviidae): Mass Rearing and Potential Use of the Parasitoid in Brazil
    Journal of Integrated Pest Management (2016) 7(1): 5; 1–11 doi: 10.1093/jipm/pmw003 Profile Tamarixia radiata (Hymenoptera: Eulophidae) 3 Diaphorina citri (Hemiptera: Liviidae): Mass Rearing and Potential Use of the Parasitoid in Brazil Jose´Roberto Postali Parra, Gustavo Rodrigues Alves, Alexandre Jose´Ferreira Diniz,1 and Jaci Mendes Vieira Departamento de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de Sa˜o Paulo, Av. Padua Dias, 11, Piracicaba, Sa˜o Paulo, Brazil ([email protected]; [email protected]; [email protected]; [email protected]), and 1Corresponding author, e-mail: [email protected] Received 3 July 2015; Accepted 15 January 2016 Downloaded from Abstract Huanglongbing (HLB) is the most serious disease affecting citriculture worldwide. Its vector in the main produc- ing regions is the Asian citrus psyllid, Diaphorina citri Kuwayama, 1908 (Hemiptera: Liviidae). Brazil has the larg- est orange-growing area and is also the largest exporter of processed juice in the world. Since the first detection http://jipm.oxfordjournals.org/ of the disease in this country, >38 million plants have been destroyed and pesticide consumption has increased considerably. During early research on control methods, the parasitoid Tamarixia radiata (Waterston, 1922) (Hymenoptera: Eulophidae) was found in Brazil. Subsequent studies focused on its bio-ecological aspects and distribution in citrus-producing regions. Based on successful preliminary results for biological control with T. radiata in small areas, mass rearing was initiated for mass releases in Brazilian conditions. Here, we review the Brazilian experience using T. radiata in D. citri control, with releases at sites of HLB outbreaks, adjacent to commercial areas, in abandoned groves, areas with orange jessamine (a psyllid host), and backyards.
    [Show full text]
  • Identification of Plant DNA in Adults of the Phytoplasma Vector Cacopsylla
    insects Article Identification of Plant DNA in Adults of the Phytoplasma Vector Cacopsylla picta Helps Understanding Its Feeding Behavior Dana Barthel 1,*, Hannes Schuler 2,3 , Jonas Galli 4, Luigimaria Borruso 2 , Jacob Geier 5, Katrin Heer 6 , Daniel Burckhardt 7 and Katrin Janik 1,* 1 Laimburg Research Centre, Laimburg 6, Pfatten (Vadena), IT-39040 Auer (Ora), Italy 2 Faculty of Science and Technology, Free University of Bozen-Bolzano, IT-39100 Bozen (Bolzano), Italy; [email protected] (H.S.); [email protected] (L.B.) 3 Competence Centre Plant Health, Free University of Bozen-Bolzano, IT-39100 Bozen (Bolzano), Italy 4 Department of Forest and Soil Sciences, BOKU, University of Natural Resources and Life Sciences Vienna, A-1190 Vienna, Austria; [email protected] 5 Department of Botany, Leopold-Franzens-Universität Innsbruck, Sternwartestraße 15, A-6020 Innsbruck, Austria; [email protected] 6 Faculty of Biology—Conservation Biology, Philipps Universität Marburg, Karl-von-Frisch-Straße 8, D-35043 Marburg, Germany; [email protected] 7 Naturhistorisches Museum, Augustinergasse 2, CH-4001 Basel, Switzerland; [email protected] * Correspondence: [email protected] (D.B.); [email protected] (K.J.) Received: 10 November 2020; Accepted: 24 November 2020; Published: 26 November 2020 Simple Summary: Cacopsylla picta is an insect vector of apple proliferation phytoplasma, the causative bacterial agent of apple proliferation disease. In this study, we provide an answer to the open question of whether adult Cacopsylla picta feed from other plants than their known host, the apple plant. We collected Cacopsylla picta specimens from apple trees and analyzed the composition of plant DNA ingested by these insects.
    [Show full text]
  • Behavioral Response of Tamarixia Radiata (Waterston) (Hymenoptera: Eulophidae) to Volatiles Emanating from Diaphorina Citri Kuwayama (Hemiptera: Psyllidae) and Citrus
    J Insect Behav (2010) 23:447–458 DOI 10.1007/s10905-010-9228-6 Behavioral Response of Tamarixia radiata (Waterston) (Hymenoptera: Eulophidae) to Volatiles Emanating from Diaphorina citri Kuwayama (Hemiptera: Psyllidae) and Citrus R. S. Mann & J. A. Qureshi & P. A. Stansly & L. L. Stelinski Revised: 5 August 2010 /Accepted: 16 August 2010 / Published online: 25 August 2010 # Springer Science+Business Media, LLC 2010 Abstract Tamarixia radiata Waterston (Hymenoptera: Eulophidae) is an effective idiobiont ectoparasitoid of the psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae), vector of the huanglongbing (HLB). We examined the olfactory responses of T. radiata to volatiles emanating from D. citri or plant volatiles using a custom designed T-maze olfactometer and open arena bioassays. We also examined the behavioral response of male and female T. radiata to conspecifics of the opposite sex to determine whether olfactory signals mediate mate location. T. radiata adults exhibited a sexually dimorphic response to volatiles emanating from D. citri and citrus. Female T. radiata responded positively to the odors emanating from D. citri nymphs in both olfactometer and open arena bioassays. However, female wasps showed no response to odors emanating from D. citri adults, D. citri honey dew secretions, intact citrus or orange jasmine leaves. Odors emanating from D. citri damaged citrus were not attractive to T. radiata females but stimulated attraction of wasps to D. citri on damaged plants. T. radiata females were not attracted to D. citri immatures when they were presented as visual cues. Male T. radiata did not show attraction to D. citri nymphs or other putative odors that were attractive to female T.
    [Show full text]
  • Incidence of Invasive Diaphorina Citri (Hemiptera: Psyllidae) and Its Introduced Parasitoid Tamarixia Radiata (Hymenoptera: Eulophidae) in Florida Citrus
    HORTICULTURAL ENTOMOLOGY Incidence of Invasive Diaphorina citri (Hemiptera: Psyllidae) and Its Introduced Parasitoid Tamarixia radiata (Hymenoptera: Eulophidae) in Florida Citrus 1,2 3 4 1 JAWWAD A. QURESHI, MICHAEL E. ROGERS, DAVID G. HALL, AND PHILIP A. STANSLY Department of Entomology and Nematology, University of Florida/IFAS, SWFREC, 2686 State Road 29 North, Immokalee, FL 34142 J. Econ. Entomol. 102(1): 247Ð256 (2009) ABSTRACT Diaphorina citri Kuwayama (Hemiptera: Psyllidae), vectors the bacterium Candidatus Liberibacter asiaticus, one of the causal organisms of the devastating citrus disease “huanglongbing” or citrus greening. In the United States, D. citri was Þrst discovered in Florida, in 1998. Tamarixia radiata Waterston (Hymenoptera: Eulophidae) was imported from Asia and released in Florida in 1999Ð2001 to improve biological control of D. citri before citrus greening was detected in Florida in 2005. Florida citrus groves were surveyed during 2006Ð2007 for D. citri and T. radiata. Results showed that D. citri was established in all 28 citrus groves surveyed across 16 counties. Adult populations averaged 3.52, 1.27, and 1.66 individuals per “tap” sample at locations in the central, southwest, and eastern coastal regions, respectively. A tap sample consisted of 22- by 28-cm white paper sheet (on a clipboard) held under branches selected at random that were tapped three times. Averages of 67, 44, and 45% citrus shoots infested with psyllid eggs or nymphs were obtained in the central, southwest, and eastern coastal regions, respectively. T. radiata was recovered from fourth- and Þfth-instar psyllid nymphs at 26 of the 28 locations. However, apparent parasitism rates were variable and averaged Ͻ20% during spring and summer over all locations.
    [Show full text]
  • Tamarixia Radiata Behaviour Is Influenced by Volatiles from Both
    insects Article Tamarixia radiata Behaviour is Influenced by Volatiles from Both Plants and Diaphorina citri Nymphs Yan-Mei Liu 1,2 , Shu-Hao Guo 1, Fei-Feng Wang 1, Li-He Zhang 2, Chang-Fei Guo 2, Andrew G. S. Cuthbertson 3, Bao-Li Qiu 1,2 and Wen Sang 1,2,* 1 Key Laboratory of Bio-Pesticide Innovation and Application, Department of Entomology, South China Agricultural University, Guangzhou 510640, China; [email protected] (Y.-M.L.); [email protected] (S.-H.G.); wff[email protected] (F.-F.W.); [email protected] (B.-L.Q.) 2 Engineering Research Center of Biological control, Ministry of Education, Guangzhou 510640, China; [email protected] (L.-H.Z.); [email protected] (C.-F.G.) 3 Independent Science Advisor, York YO41 1LZ, UK; [email protected] * Correspondence: [email protected]; Tel.: +86-20-8528-3717 Received: 7 March 2019; Accepted: 13 May 2019; Published: 16 May 2019 Abstract: Tamarixia radiata (Waterston) is an important ectoparasitoid of the Asian citrus psyllid, Diaphorina citri Kuwayama, a globally destructive pest of citrus. In the present study, a Y-tube olfactometer was employed to investigate whether the parasitoid T. radiata is capable of utilizing the odour source emitted by both plants and insect hosts during its foraging. The odour sources included Murraya paniculata (L.) shoots, 1st, 2nd, 3rd, 4th, and 5th D. citri instar nymphs, both individually and in combinations. Moreover, nymph-stage choice for parasitism, including 3rd, 4th, and 5th D. citri instar nymphs, was carried out. The results indicated that female T. radiata were only significantly attracted to volatiles emitted by M.
    [Show full text]