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1

Vargas-Sarmiento, María Mercedes. "Essential oil treatments to control Varroa destructor Anderson and Trueman 2000 (formerly Varroa jacobsoni Oudemans 1904) (Mesostigmata: Varroidae)." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1784.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains viii, 70 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 42-52).
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Schneider, Verena. "Untersuchungen zur genetischen Populationsstruktur von Varroa destructor." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-120259.

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3

Devlin, Shawn Michael. "Comparative analyses of sampling methods for varroa mites, Varroa destructor Anderson and Trueman, on honey bees, Apis mellifera L." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61548.pdf.

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4

Allsopp, Mike. "Analysis of Varroa destructor infestation of southern African honeybee populations." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-08082007-153050.

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5

Hapke, Samuel David. "Integrated management of Varroa destructor Anderson & Trueman (Acari: Varroidae) in honey bees, Apis mellifera l. (Hymenoptera: Apidae), in western Washington State, USA." Pullman, Wash. : Washington State University, 2008. http://www.dissertations.wsu.edu/Thesis/Fall2008/s_hapke_111008.pdf.

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6

Garcia, Fernanda Wiesel. "Identificação de vírus que afetam apis mellifera associados ao ácaro ectoparasita varroa destructor em apiários do Rio Grande do Sul." Universidade Federal do Pampa, 2014. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/586.

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Submitted by Ana Damasceno (ana.damasceno@unipampa.edu.br) on 2016-10-13T18:21:12Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Identificacao de virus que afetam apis mellifera.pdf: 2079239 bytes, checksum: 490f111cf7ddb616e9d3cc3373a5be07 (MD5)<br>Made available in DSpace on 2016-10-13T18:21:12Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Identificacao de virus que afetam apis mellifera.pdf: 2079239 bytes, checksum: 490f111cf7ddb616e9d3cc3373a5be07 (MD5) Previous issue date: 201
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Denholm, Colin Hawthorn. "Inducible honey bee viruses associated with Varroa jacobsoni." Thesis, Keele University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301331.

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8

Vu, Philene Dung. "Toxicological Analysis of Acaricides for Varroa Mite Management." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/81089.

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The varroa mite is a primary driver behind periodical losses of honey bee colonies. The mite requires bees for food and reproduction and, in turn, elicits physiological deficiencies and diseases that compromise bee colony health. The mite nervous system is a target site for existing acaricides. These acaricides not only have adverse health effects on bees, but resistance limits their use to reduce mites and diseases in bee colonies. Voltage-gated chloride channels are involved in the maintenance of nerve and muscle excitability in arthropod pests, which suggests that these channels might b
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Nordström, Susanne. "Virus infections and varroa mite infestations in honey bee colonies /." Uppsala : Swedish University of Agricultural Sciences, 2000. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009004684&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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10

Roth, Morgan Alicia. "Methods for controlling two European Honey bee (Apis mellifera L.) pests: Varroa mites (Varroa destructor, Anderson and Trueman) And Small hive beetles (Aethina tumida)." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/100994.

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Throughout the last five decades, European Honey bee (Apis mellifera) colonies have been heavily damaged by invading Varroa mites (Varroa destructor), and, more recently, small hive beetles (Aethina tumida). These pests infest A. mellifera colonies throughout Virginia, with V. destructor feeding upon the lipids of their hosts and spreading viruses, and A. tumida feeding extensively on hive products and brood. Because V. destructor has historically demonstrated acaricide resistance, this study examined V. destructor resistance to three common acaricides (amitraz, coumaphos, and tau-fluvalinate)
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Martin, Caroline. "Sensibilité de l'abeille apis mellifera à l'acarien parasite varroa jacobsoni." Avignon, 2000. http://www.theses.fr/2000AVIG0308.

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Varroa jacobsoni, acarien ectoparasite de l'abeille, provoque une forte mortalité dans les colonies d'apis mellifera. Le but de cette étude est de montrer la présence de mécanismes de résistance de l'abeille au varroa et de caractériser les stimuli impliqués dans sa détection par l'abeille. L'étude du nombre de varroa récupérés sur le fond des ruches amène à distinguer deux types de colonies sensibles et résistantes. Des tests comportementaux (agressivité des abeilles vs. Varroa en conditions contrôlées et comportement hygiénique des abeilles lors d'infestations artificielles du couvain par 1
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Serrenho, Ana Luísa Marques Gaspar. "Avaliação do efeito acaricida de óleo essencial de mentha cervina L. sobre Varroa destructor." Master's thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/15281.

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A varroa destructor é um ácaro que compromete a sobrevivência e produtividade das abelhas, acarretando grandes prejuízos para a actividade apícola. Actualmente, uma das linhas de investigação nesta área passa por tratamentos através de óleos essenciais. Este trabalho teve como objectivo avaliar o efeito acaricida de óleo essencial (OE) de Mentha cervina. Foram realizados ensaios com varroas sujeitas a várias doses de óleo. Os resultados foram promissores, pois o efeito acaricida foi notório mesmo a doses muito baixas. Ficou igualmente provado que o OE testado não é prejudicial para as abelhas.
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Rasolofoarivao, Henriette. "Apis mellifera unicolor (Latreille 1804, Hymenoptera Apidae) et Varrroa destructor (Anderson and Trueman, 2000, Acari : Varroidae) à Madagascar : diversité génétique, impact et comportement hygiénique." Thesis, La Réunion, 2014. http://www.theses.fr/2014LARE0032/document.

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Madagascar figure parmi les cinq premiers pays « hot spots » prioritaires pour la conservation de la biodiversité mondiale, Apis mellifera unicolor est son abeille endémique. Depuis 2010, V. destructor a été introduit à Madagascar. Les objectifs de cette thèse étaient : d'étudier la diversité et la structure génétique de l'abeille A. m. unicolor et de l'acarien V. destructor, d'évaluer l'impact de V. destructor sur les colonies, d'étudier le comportement hygiénique des colonies. Nos résultats confirment que l'ensemble des échantillons collectés font partie de la lignée africaine, plus de 99% o
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Bradford, Emma Louise. "Transmission of deformed wing virus (DWV) between Varroa destructor and the European honeybee (Apis mellifera) : in vitro and in vivo studies." Thesis, University of Aberdeen, 2019. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240204.

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The European honeybee (Apis mellifera) is a managed insect pollinator of global economic importance. Over the last few decades honeybees have been undergoing a major health crisis, with one of the biggest causes the parasitic mite, Varroa destructor and its role in changing the viral landscape of deformed wing virus (DWV), which consists of two major variants: DWV-A and DWV-B. Prior to the start of this project there was limited information known about the mechanisms behind the relationships between Varroa, DWV and honeybees. The overarching aim of this project was to further enhance our under
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Boldo, Juliano Tomazzoni. "Identificação de Vírus que Afetam Apis Mellifera Associados ao Ácaro Ectoparasita Varroa Destructor em Apiários do Rio Grande do Sul." Universidade Federal do Pampa, 2014. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/211.

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Submitted by Sandro Camargo (sandro.camargo@unipampa.edu.br) on 2015-05-07T22:33:38Z No. of bitstreams: 1 126110036.pdf: 2091532 bytes, checksum: 8020f2b19bedcc2aebd080e502846a88 (MD5)<br>Made available in DSpace on 2015-05-07T22:33:38Z (GMT). No. of bitstreams: 1 126110036.pdf: 2091532 bytes, checksum: 8020f2b19bedcc2aebd080e502846a88 (MD5) Previous issue date: 2014-04-30<br>A apicultura é uma atividade de importância econômica e ambiental. O clima e a flora do Brasil somados à presença da abelha africanizada conferem um excelente potencial apícola. Entretanto, as abelhas são suscetív
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Colin, Marc-Edouard. "Recherches de voies nouvelles dans le contrôle de Varroa jacobsoni Oudemans, parasite de l'abeille, Apis mellifera L : [thèse en partie soutenue sur un ensemble de travaux]." Toulouse 3, 1991. http://www.theses.fr/1991TOU30214.

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Le passage recent de cet acarien mesostigmate de l'abeille asiatique apis cerana fabr. A l'abeille domestique apis mellifera l. A provoque une veritable epizootie sur son nouvel hote. La therapie d'urgence, fondee sur l'administration d'acaricides de synthese, est limitee par l'apparition de souches d'acariens resistants et menace le label naturel attache aux produits de la ruche. Suivant les recommandations du groupe d'experts europeens de la varroose, trois voies de recherche ont ete explorees en vue de supprimer ou de limiter l'usage d'acaricides de synthese: la premiere est la verification
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Attal, Yehya Zaki Khalid al. "The host parasite relation of the parasitic mite Varroa destructor (Anderson and Trueman) and the honeybee races A. m. syriaca (Skorikov) and A. m. carnica (Pollmann) in Jordan." Beuren Stuttgart Grauer, 2006. http://d-nb.info/989987833/04.

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Santillan-Galicia, Ma Teresa. "Characterisation of deformed wing and slow paralysis virus transmission by Varroa destructor." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431926.

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19

Le, Conte Yves. "Contribution a l'etude des relations abeille-varroa : approches comportementale, chimique, et genetique." Paris 11, 1990. http://www.theses.fr/1990PA112274.

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Varroa jacobsoni: acarien ectoparasite de l'abeille, se nourrit de leur hemolymphe de telle sorte que les colonies non traitees perissent en 1 a 3 ans. Il se reproduit sur les larves, a l'interieur des cellules de cire dans lesquelles il penere juste avant leur operculation par les ouvrieres. Nous avons mis en evidence des stimulus thermiques, chimiques et vibratoires intervenant lors de l'attraction des varroas par l'abeille. Nous nous sommes interesses specialement aux stimulus de nature chimique, dans la perspective de la mise au point d'une methode de lutte integree basee sur l'utilisation
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20

Durand, Tristan. "Interactions virales chez l'abeille mellifère (Apis mellifera) et conséquences sur leur santé." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ6041.

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Les abeilles mellifères (Apis mellifera) sont communément infectées par de multiples virus. Alors que la plupart d'entre eux restent commensaux, d'autres peuvent devenir pathogènes dans certains contextes. Le virus des ailes déformées (deformed wing virus, DWV), le virus du couvain sacciforme (sacbrood virus, SBV) et les virus de la paralysie aigüe ou chronique (acute bee paralysis virus, ABPV et chronic bee paralysis virus, CBPV) peuvent notamment entrainer l'apparition de signes cliniques chez le couvain et/ou l'abeille adulte, et participer à l'effondrement de colonies. Les facteurs favoris
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21

Butler, Lara Elizabeth. "Honey bee gene regulation and transcriptional effects of a pheromone and a parasite." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2748.

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22

Riusech, Natalia Solis. "Varroa mite control in honey bee colonies: The use of a fatty acid blend (C8910) for Varroa mite control and exploring management practices used by beekeepers in full-sized colonies." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492683874951262.

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Norton, Amanda Mary. "Disentangling the Relationship Between Deformed wing virus, the Honey Bee Host (Apis mellifera) and the Viral Vector, the Ectoparasitic Mite Varroa destructor." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25768.

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The ectoparasitic mite Varroa destructor is indisputably the most significant driver of global colony losses of the Western honeybee, Apis mellifera. Colony deaths are frequently attributed to Deformed wing virus (DWV), which is vectored by the mite. In this thesis I attempt to disentangle the tripartite relationship between DWV, A. mellifera and V. destructor, by investigating whether the two major DWV genotypes, A and B, differ from the point of view of the virus, the honey bee and the mite. First, I assessed the viral accumulation dynamics of multiple DWV genotypes during single or co-inf
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Castagnino, Guido Laércio Bragança [UNESP]. "Produtos naturais no controle do ácaro Varroa destructor em abelhas Apis mellifera L. (africanizadas)." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/104116.

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Made available in DSpace on 2014-06-11T19:32:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-06-11Bitstream added on 2014-06-13T20:44:28Z : No. of bitstreams: 1 castagnino_glb_dr_botfvmz.pdf: 159555 bytes, checksum: 0d4941b05eba8f37f9e2e42101623105 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>O presente trabalho teve como objetivo avaliar os efeitos do ácido oxálico e de óleos essenciais de plantas como arruda (Ruta graveolens), timol (Thymus vulgaris) eucalipto (Eucalyptus spp) e hortelã (Mentha piperita)
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Kralj, Jasna. "Selection of honey bees with rapid development as a component of Varroa mite resistance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ33242.pdf.

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Castagnino, Guido Laércio Bragança 1960. "Produtos naturais no controle do ácaro Varroa destructor em abelhas Apis mellifera L. (africanizadas) /." Botucatu : [s.n.], 2008. http://hdl.handle.net/11449/104116.

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Resumo: O presente trabalho teve como objetivo avaliar os efeitos do ácido oxálico e de óleos essenciais de plantas como arruda (Ruta graveolens), timol (Thymus vulgaris) eucalipto (Eucalyptus spp) e hortelã (Mentha piperita) na infestação do Varroa destructor em colônias de abelhas Apis mellifera africanizadas. Testes in vitro foram realizados para verificar o efeito desses produtos sobre as abelhas e os ácaros Varroa destructor. Vinte abelhas foram colocadas em gaiola de observação e, no seu interior, um bloco de esponja floral com 10μL, 50μL e 200μL dos diferentes óleos essenciais, segundo
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Genath, Antonia [Verfasser]. "Charakterisierung des molekularen Wirkmechanismus des Varroazids Ameisensäure auf Honigbienen und Varroa-Milben / Antonia Genath." Berlin : Freie Universität Berlin, 2020. http://d-nb.info/1218530456/34.

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Adomavičiūtė, Ieva. "Bičių šeimos kaip gamybos priemonės tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_134203-30921.

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Darbo tema: „Bičių šeimos kaip gamybos priemonės tyrimai“. Duomenys rinkti 2012-2013 metais iš 10 bitynų, kurie yra šiaurės rytų Aukštaitijos regione. Apklausti 5 bitininkai profesionalai ir 5 bitininkai mėgėjai. Raktiniai žodžiai: bitės, Varroa destructor erkės. Apie 64 proc. Lietuvos bitininkų savo bitynuose nekeičia bičių motinėlių, todėl sumažėja bičių produktyvumas. Taip pat, didžiausia bitynų problema yra Varroa destructor erkės, kadangi jos ne tik nualina bičių šeimą, bet yra viena iš esminių priežasčių, dėl bičių mirtingumo po žiemojimo. Darbo tikslas yra įvertinti veiksnius, labiaus
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Silva, Dinis António Dias da. "Estudo sanitário de um apiário da região centro Portugal : identificação, monotorização e controlo dos principais agentes etiológicos." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2021. http://hdl.handle.net/10400.5/21224.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>O conhecimento do estado sanitário das colmeias e dos apiários é uma ferramenta chave para o apicultor obter uma redução na mortalidade anual e consequentemente um aumento do sucesso da exploração apícola. Os objetivos deste trabalho basearam-se na realização de 3 estudos sanitários num apiário da região centro de Portugal, durante a época de maior mortalidade (início do outono, inverno e início da primavera) de forma a obter informação sobre o real estado sanitário das colmeias, pesquisando os principais agentes etiológicos no
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Means, Jackson C. "Development of a Precision Mite Management Program for the Control of the Ectoparasite Varroa destructor in Hives of Apis mellifera L." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/64198.

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The European honey bee, Apis mellifera, is an important pollinator of horticultural and agricultural field crops, providing ≈ 90% of all commercial pollination services (Genersch et al. 2010). The recent rise in colony loss due to Colony Collapse Disorder (CCD) has been a source of concern for both beekeepers and the apiculture industry. One of the factors implicated in CCD is infestation by the ectoparasitic mite, Varroa destructor. Initial efforts to control the mite relied heavily on regular application of miticides without regard to actual mite infestation levels. This approach has led
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Souza, Franklin Amaro de. "Efeito da insolação na sanidade de abelhas Apis mellifera (africanizadas) no Semiárido Brasileiro." Universidade Federal Rural do Semi-Árido, 2016. http://bdtd.ufersa.edu.br:80/tede/handle/tede/569.

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Submitted by Socorro Pontes (socorrop@ufersa.edu.br) on 2017-03-13T13:17:05Z No. of bitstreams: 1 FranklinAS_DISSERT.pdf: 1406892 bytes, checksum: 31ccee360ab84a9af3e75803363344c4 (MD5)<br>Made available in DSpace on 2017-03-13T13:17:05Z (GMT). No. of bitstreams: 1 FranklinAS_DISSERT.pdf: 1406892 bytes, checksum: 31ccee360ab84a9af3e75803363344c4 (MD5) Previous issue date: 2016-02-27<br>Africanized honey bees (Apis mellifera) from the region of the Semiarid Potiguar has two main diseases: varroatose, whose agent is the mite Varroa destructor and, the Nosemosis disease, recently introduced i
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Junior, Gabriel Lisboa Bacha. "Aspectos epidemiológicos da infestação do ácaro varroa spp. em apiculturas da microrregião de Viçosa - MG." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/BUOS-8BWHN4.

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In this paper 117 apiaries were evaluated by geoprocessing, totalizing 1849 hives from 22 different beekeepers in the Zona da Mata in the state of Minas Gerais, Brazil. The work was proceeded form 2005 to 2006. The main objectives were to evaluate the epidemiological conditions of the apiaries based on the productive and social-economic features. In this way, it was emphasized the comparison between the taxo f infestation by Varroa spp. in apiaries with and without superposition of visualized feeding áreas based in their geoprocessing analysis. The infestation tax in the two nuclei studied wit
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Rondeau, Sabrina. "Lutte biologique contre le parasite apicole Varroa destructor à l'aide de l'acarien prédateur Stratiolaelaps scimitus." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/36553.

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Tableau d'honneur de la FÉSP<br>En se nourrissant de l’hémolymphe et des corps gras de l’abeille domestique (Apis mellifera L.) et en lui transmettant de nombreux virus, l’acarien parasite Varroa destructor (Acari : varroidae) constitue la principale cause de mortalité des colonies d’abeilles. Les traitements chimiques présentement utilisés pour lutter contre le varroa comportent plusieurs désavantages, tels que le développement de résistance de l’acarien aux acaricides de synthèse et une toxicité variable pour l’abeille. Via l’utilisation d’ennemis naturels du parasite, la lutte biologique po
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Alvarez-Ventura, Stephany C. "Measuring Impacts of Neem Oil and Amitraz on Varroa destructor and Apis Mellifera in Different Agricultural Systems of South Florida." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/490.

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This thesis analyzes mixtures of neem oil and amitraz as alternative control for Varroa destructor, a major pest of Apis mellifera, under different agricultural settings. In organic and conventional farms, the different treatments were applied in colonies to determine impacts on mite loss, colony strength, and honey yield. The results demonstrated neem to have the least effective control on mite mortality, while the neem and amitraz mixture had the most. Furthermore, no long term impacts on queen fecundity and colony strength were noticed between treatments. However, queen fecundity and honey
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Hamid, Abdulkareem M. "Membrane-barrier delivery of formic acid vapours to control Varroa jacobsoni infestation in honey bees colonies." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37800.pdf.

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Salvy, Marine. "Etude de la communication chimique intraspécifique chez Varroa Jacobsoni, acarien parasite de l'abeille domestique, Apis Mellifera." Aix-Marseille 1, 1999. http://www.theses.fr/1999AIX11072.

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Le parasite actuellement le plus dangereux pour les colonies d'abeille domestique est l'acarien varroa jacobsoni (acari: varroidae). Cet ectoparasite se nourrit de l'hemolymphe des abeilles adultes et du couvain dans lequel il se reproduit. L'objectif de ce travail etait de mettre en evidence l'existence de pheromones chez v. Jacobsoni. Nous avons mis au point des dispositifs experimentaux pour etudier le comportement locomoteur de l'acarien afin de quantifier les reponses du parasite en presence de differents stimuli olfactifs. Les femelles fondatrices ne montrent pas d'attraction lorsqu'elle
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BACCEI, SARA GIOIA. "Epigenetics and symbioses. Analysis of DNA methylation pattern in Apis mellifera and Varroa destructor parasitic relationship." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/81658.

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DNA methylation is an epigenetic mechanism which consist of the a addition of a methyle group to a cytosine in a DNA sequence. Such modifications are able to cause several changes in the regulation and expression of genes, allowing organisms to respond quickly to different kind of environmental variations. In this study, the hypothesis that such epigenetic modification and, in particular DNA methylation, for its great simplicity, plasticity and magnitude can be involved in the regulation symbiont interactions. It is infact, well known that a lot of viruses and bacteria interact with their host
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Paiva, Charle da Silva. "Detecção da Nosema spp. e da Varroa destructor em colmeias de Apis mellifera no semi-árido nordestino." Universidade Federal Rural do Semi-Árido, 2014. http://bdtd.ufersa.edu.br:80/tede/handle/tede/699.

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Submitted by Socorro Pontes (socorrop@ufersa.edu.br) on 2017-05-18T14:24:19Z No. of bitstreams: 1 CharleSP_DISSERT.pdf: 910690 bytes, checksum: 59c5e27b94cfbdfc815497c189471131 (MD5)<br>Made available in DSpace on 2017-05-18T14:24:19Z (GMT). No. of bitstreams: 1 CharleSP_DISSERT.pdf: 910690 bytes, checksum: 59c5e27b94cfbdfc815497c189471131 (MD5) Previous issue date: 2014-02-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The Nosemosis is today one of the major threats to profitable beekeeping, just after varroa. Since it is a disease which has only recently become aware
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TROUILLER, JEROME. "La communication chimique inter- et intra-specifique chez l'abeille. Relations abeille-varroa, couvain-ouvriere et reine-ouvriere." Paris 7, 1993. http://www.theses.fr/1993PA077104.

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L'acarien parasite varroa jacobsoni constitue une menace mondiale pour l'abeille apis mellifera. Au cours de son cycle de reproduction, les acariens penetrent dans les cellules contenant des abeilles au dernier stade larvaire, peu avant la fermeture de la cellule (operculation) par les ouvrieres adultes. Parmi les composes chimiques presents a la surface des larves, 10 esters methyliques et ethyliques d'acide gras ont un cycle de secretion particulier. Ces esters, presents en quantite infime sur les jeunes larves, sont secretes intensement par les larves d'abeille quelques heures avant l'operc
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Tentchev, Diana. "Le virus des ailes déformées chez l'abeille domestique Apis mellifera L. Et chez son ectoparasite Varroa destructor." Montpellier 2, 2006. http://www.theses.fr/2006MON20199.

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41

Bouro, Wallgren Sofia. "Tolerance to virus infections could explain increased winter colony survival observed in Varroa destructor-resistant honey bees." Thesis, Uppsala universitet, Institutionen för kvinnors och barns hälsa, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355914.

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Honey bee colonies all over Europe and North America have been declining dramatically for over three decades and is continuing to do so which is causing significant threats to economy, agriculture and ecosystems. The main reason behind the declining colonies is an ectoparasitic mite known as Varroa destructor and viruses vectored by the mite. In previous studies, it has been suggested that a unique mite-resistant subpopulation of honey bees (Apis mellifera) in Gotland, Sweden have developed adaptive tolerance to these viruses as they have managed to survive high mite infestation through natura
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Pires, Sancia. "Contribuição para o estudo do comportamento higiénico associado ao ácaro Varroa destructor em colónias de abelhas melíferas portuguesas." Doctoral thesis, UTAD, 2006. http://hdl.handle.net/10198/6062.

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No presente estudo investigou-se o comportamento higiénico de colónias de abelhas melíferas portuguesas através do teste de morte da criação de obreira por congelação e de vários métodos de infestação de alvéolos de criação de obreira com o ácaro V. destructor. Avaliou-se também o nível de expressão do comportamento higiénico manifestado por grupos de colónias higiénicas e não higiénicas, por ano e entre anos. Além disso, analisou-se quer o efeito da aplicação conjunta dos vários métodos de infestação, quer a relação entre o nível de comportamento higiénico manifestado nesses grupos e a
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Desai, Suresh. "The potential impact of pathogens on honey bee, Apis mellifera L., colonies and possibilities for their control." John Wiley and Sons, 2012. http://hdl.handle.net/1993/23505.

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Excessive honey bee colony losses all over the world are believed to be caused by multiple stressors. In this thesis, I characterized and quantified pathogen levels in honey bee colonies, studied their interactions with each other and with their associated parasite vectors, examined factors that influence their combined impacts on honey bees and developed methods to manage honey bee viruses so that colony losses can be minimized. My baseline study of virus prevalence and concentration in healthy and unhealthy (showing visible signs of disease) colonies in Canada showed that seven economicall
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OLINTO, Francisco Ariclenes. "Comportamento higiênico e identificação de patógenos em colmeias de apis mellifera l. Africanizadas no Sertão Paraibano." Universidade Federal de Campina Grande, 2014. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/676.

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Submitted by Élida Maeli Fernandes Quirino (maely_sax@hotmail.com) on 2018-05-15T13:05:55Z No. of bitstreams: 1 FRNACISCO ARICLENES OLINTO - DISSERTAÇÃO PPGSA PROFISSIONAL 2014..pdf: 1640106 bytes, checksum: b19b02a5c2c2ea22def9e997924518db (MD5)<br>Made available in DSpace on 2018-05-15T13:05:55Z (GMT). No. of bitstreams: 1 FRNACISCO ARICLENES OLINTO - DISSERTAÇÃO PPGSA PROFISSIONAL 2014..pdf: 1640106 bytes, checksum: b19b02a5c2c2ea22def9e997924518db (MD5) Previous issue date: 2014-12-16<br>A apicultura é uma das poucas atividades agropecuárias que atende aos três requisitos da sustent
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Silva, Carlos Manuel Relva. "Luta contra Varroa destructor Anderson & Trueman: avaliação de estratégias biotécnicas e bioquímicas com o óleo de Mentha cervina L." Master's thesis, ISA, 2010. http://hdl.handle.net/10400.5/2885.

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Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>Varroa destructor Anderson & Trueman is a parasitic mite of the honeybee Apis mellifera L. This species is originated from Asia, being invasive in Europe and other regions, where it causes heavy losses to beekeeping. In this work we have two main objectives: In the first part, the effect of excluding the queen’s egglaying activity as a biotechnical control measure integrated with the chemical treatment against varroa is tested. In the second part of the study, laboratory trials were conducted using es
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Strauss, Ursula. "Prevalence of parasites and diseases in the African honeybee (Apis mellifera scutellata Lepeletier) : with a particular focus on Varroa destructor." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/30966.

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The status of honeybee pathogens and parasites in the Gauteng region of South Africa was examined by collecting adult honeybee and worker brood samples from 13 Apis mellifera scutellata apiaries. The prevalence of pathogens and parasites were compared per season between sedentary (permanently stationed colonies) and migratory (transportation of colonies for pollination purposes) apiaries. Honeybee pathogens (Acute bee paralysis virus (ABPV), Black queen cell virus (BQCV), Chronic bee paralysis virus (CBPV), Deformed wing virus (DWV), Israeli acute paralysis virus (IAPV), Sacbrood virus (SBV),
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Santos, Joyce de Fgueiró. "A importância dos mecanismos comportamentais de resistência para a dinâmica populacional de abelhas Apis mellifera e o parasita Varroa destructor." reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/11876.

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Submitted by Joyce de Figueiró Santos (joycefigueiro@gmail.com) on 2014-07-21T14:48:02Z No. of bitstreams: 1 mestrado(1).pdf: 12859151 bytes, checksum: cce9beb4e56c9706618a1d6361e58fd9 (MD5)<br>Approved for entry into archive by Janete de Oliveira Feitosa (janete.feitosa@fgv.br) on 2014-07-22T21:09:53Z (GMT) No. of bitstreams: 1 mestrado(1).pdf: 12859151 bytes, checksum: cce9beb4e56c9706618a1d6361e58fd9 (MD5)<br>Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2014-07-24T17:35:11Z (GMT) No. of bitstreams: 1 mestrado(1).pdf: 12859151 bytes, checksum: cce9beb4e56c9706
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Vandame, Rémy. "Importance de l'hybridation de l'hôte dans la tolérance à un parasite : cas de l'acarien parasite Varroa jacobsoni chez les races d'abeille Apis mellifera européenne et africanisée, en climat tropical humide du Mexique." Lyon 1, 1996. http://www.theses.fr/1996LYO10306.

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Beaurepaire, Alexis Louis [Verfasser]. "Impact of human management on the host-parasite interctions between Apis and Varroa : $hvorgelegt von Alexis Louis Beaurepaire / Alexis Louis Beaurepaire." Halle, 2017. http://d-nb.info/1129174395/34.

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Pinto, Fábio de Assis. "Varroa destructor Anderson & Truemann, 2000: Perfil genético, taxas de infestação e reprodução em abelhas Apis mellifera L. (africanizadas) no Brasil." Universidade Federal de Viçosa, 2012. http://locus.ufv.br/handle/123456789/3955.

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Made available in DSpace on 2015-03-26T13:30:42Z (GMT). No. of bitstreams: 1 texto completo.pdf: 2184805 bytes, checksum: 609b308cb0f9082feb3004b7c0f7356f (MD5) Previous issue date: 2012-07-23<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The mite Varroa destructor (Mesostigmata Varroidae) (Anderson & Truemann, 2000) is a major problem in the apiculture. Besides being the vector of viruses related to Colony Collapse Disorder (CCD), causes mortality of colonies at high levels of infestation. Its damage depends upon a number of biotic and abiotic factors, in which the var
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