Publicação
Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal
| Resumo: | Following widespread claims of decreasing Apistan field efficacy, a large screening project was put into practice towards trying to identify Portuguese Varroa populations highly tolerant to fluvalinate. Approximately 12 thousand field-tests were carried out, for the most part based upon the “British National Bee Unit” field-testing methodology (with an extra blank control test added). From all studied colonies, 1536 allowed for conclusive field-testing (i.e. 3 or more Varroa were submitted to fluvalinate in a given test and no abnormal Varroa mortality was found in the respective control test). Using a 60 % fluvalinate-induced Varroa mortality border line, 878 of those colonies were considered to host fluvalinate-tolerant Varroa populations. On average, 18 mites were studied per colony that tested positive for fluvalinate-tolerant Varroa populations. The overall fluvalinate therapeutic efficacy, as regards Varroa populations hosted in those colonies, was only 26.4 +- 0.6 % (mean +- s.e.m.). Capped brood samples from honey bee colonies that had field-tested positive for fluvalinate-tolerant Varroa populations were later collected to provide Varroa for laboratory reassessment of fluvalinate-tolerance (basically, following Milani’s methodology). Even though we had to discard results obtained from approximately half of the collected brood samples (adding to a total of 172 samples, as a result of the insufficient numbers of mature Varroa they hosted), in many instances field-test outcomes could be later confirmed by laboratory tests. |
|---|---|
| Autores principais: | Pires, Sancia |
| Outros Autores: | Maia, Miguel; Murilhas, António; Pereira, Óscar |
| Ano: | 2007 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173170495094784 |
|---|---|
| author | Pires, Sancia |
| author2 | Maia, Miguel Murilhas, António Pereira, Óscar |
| author2_role | author author author |
| author_facet | Pires, Sancia Maia, Miguel Murilhas, António Pereira, Óscar |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Pires, Sancia\",\"Person.identifier.orcid\":\"0000-0001-8427-0179\"},{\"Person.name\":\"Maia, Miguel\"},{\"Person.name\":\"Murilhas, António\"},{\"Person.name\":\"Pereira, Óscar\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Pires, Sancia Maia, Miguel Murilhas, António Pereira, Óscar |
| datacite.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-06-22T11:09:39Z |
| datacite.date.embargoed.fl_str_mv | 2011-06-22T11:09:39Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.titles.title.fl_str_mv | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Pires, Sancia Maia, Miguel Murilhas, António Pereira, Óscar |
| dc.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-06-22T11:09:39Z |
| dc.date.embargoed.fl_str_mv | 2011-06-22T11:09:39Z |
| dc.format.none.fl_str_mv | application/pdf application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/5325 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Apimondia |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.title.fl_str_mv | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | Following widespread claims of decreasing Apistan field efficacy, a large screening project was put into practice towards trying to identify Portuguese Varroa populations highly tolerant to fluvalinate. Approximately 12 thousand field-tests were carried out, for the most part based upon the “British National Bee Unit” field-testing methodology (with an extra blank control test added). From all studied colonies, 1536 allowed for conclusive field-testing (i.e. 3 or more Varroa were submitted to fluvalinate in a given test and no abnormal Varroa mortality was found in the respective control test). Using a 60 % fluvalinate-induced Varroa mortality border line, 878 of those colonies were considered to host fluvalinate-tolerant Varroa populations. On average, 18 mites were studied per colony that tested positive for fluvalinate-tolerant Varroa populations. The overall fluvalinate therapeutic efficacy, as regards Varroa populations hosted in those colonies, was only 26.4 +- 0.6 % (mean +- s.e.m.). Capped brood samples from honey bee colonies that had field-tested positive for fluvalinate-tolerant Varroa populations were later collected to provide Varroa for laboratory reassessment of fluvalinate-tolerance (basically, following Milani’s methodology). Even though we had to discard results obtained from approximately half of the collected brood samples (adding to a total of 172 samples, as a result of the insufficient numbers of mature Varroa they hosted), in many instances field-test outcomes could be later confirmed by laboratory tests. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/a623792f-5475-447e-86b8-d9756618e322/download |
| id | ipb_aa2ea3db9b937276f02df8f2a44d220c |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/5325 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/5325 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Pires, Sancia Pires, Sancia https://www.ciencia-id.pt/CC12-1B38-26C8 CC12-1B38-26C8 http://orcid.org/0000-0001-8427-0179 0000-0001-8427-0179 Maia, Miguel Murilhas, António Pereira, Óscar |
| publishDate | 2007 |
| publisher.none.fl_str_mv | Apimondia |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engApimondiaporFollowing widespread claims of decreasing Apistan field efficacy, a large screening project was put into practice towards trying to identify Portuguese Varroa populations highly tolerant to fluvalinate. Approximately 12 thousand field-tests were carried out, for the most part based upon the “British National Bee Unit” field-testing methodology (with an extra blank control test added). From all studied colonies, 1536 allowed for conclusive field-testing (i.e. 3 or more Varroa were submitted to fluvalinate in a given test and no abnormal Varroa mortality was found in the respective control test). Using a 60 % fluvalinate-induced Varroa mortality border line, 878 of those colonies were considered to host fluvalinate-tolerant Varroa populations. On average, 18 mites were studied per colony that tested positive for fluvalinate-tolerant Varroa populations. The overall fluvalinate therapeutic efficacy, as regards Varroa populations hosted in those colonies, was only 26.4 +- 0.6 % (mean +- s.e.m.). Capped brood samples from honey bee colonies that had field-tested positive for fluvalinate-tolerant Varroa populations were later collected to provide Varroa for laboratory reassessment of fluvalinate-tolerance (basically, following Milani’s methodology). Even though we had to discard results obtained from approximately half of the collected brood samples (adding to a total of 172 samples, as a result of the insufficient numbers of mature Varroa they hosted), in many instances field-test outcomes could be later confirmed by laboratory tests.application/pdfapplication/pdfporField and laboratory screening for fluvalinate-tolerant varroa populations in PortugalPersonalPires, SanciaDSpacehttp://dspace.org/items/d1319f5d-6ffc-4e2c-9035-fa06b834c88fDSpacehttp://dspace.org/items/d1319f5d-6ffc-4e2c-9035-fa06b834c88fPiresSanciaCiência IDhttps://www.ciencia-id.ptCC12-1B38-26C8ORCIDhttp://orcid.org0000-0001-8427-0179Scopus Author IDhttps://www.scopus.com53878422600Maia, MiguelMurilhas, AntónioPereira, ÓscarHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.pt2011-06-22T11:09:39Z20072007-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/5325http://purl.org/coar/access_right/c_abf2open access387432 bytes2215111 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference objecthttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/a623792f-5475-447e-86b8-d9756618e322/downloadhttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/6db6e7e6-7fdb-4e38-aa2c-dcd4f9ca2006/downloadApimondia Programme & Abstracts 40th Apimondia International Apicultural congressNº 229148148Melbourne Australia |
| spellingShingle | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal Pires, Sancia |
| status | SINGLETON |
| title | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| title_full | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| title_fullStr | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| title_full_unstemmed | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| title_short | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| title_sort | Field and laboratory screening for fluvalinate-tolerant varroa populations in Portugal |
| url | http://hdl.handle.net/10198/5325 |
| visible | 1 |