Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1603/0022-0493-94.4.806 http://hdl.handle.net/11449/224222 |
Resumo: | An apiary trial was conducted in 1997 in Sardinia, Italy, to verify the effectiveness of fluvalinate in polyvinyl chloride strips and flumethrin in polyethylene strips against Varroa jacobsoni Oudemans. Two indices to evaluate the efficacy of the treatments were adopted: percentage change in mite infestation of worker-sealed brood cells considering only treated hives and percentage change in mite mortality, and the natural variation in mite populations recorded in control hives during the trial. All acaricide treatments reduced the level of mite infestation of both sealed brood and adult bees. However, their effectiveness was slightly reduced in comparison to previous studies because of mite resistance phenomena. Portions of polyethylene strips of flumethrin from treated hives were sampled weekly to determine acaricide persistence using gas chromatography. After 4 wk, a slight reduction (≈9%) of the active ingredient content was observed. A laboratory bioassay also was performed to establish the resistance of adult female mites to fluvalinate. Mites were sampled from the experimental apiary and from various Sardinian apiaries which had primarily been subjected to fluvalinate applications in plastic strips or wood inserts for years. Mite resistance varied from O to 96%, depending on the acaricide management adopted. The lowest resistance level occurred in an apiary where pyrethroids had never been used, whereas the highest level occurred in an apiary with intensive use of fluvalinate in wood inserts. © 2001 Entomological Society of America. |
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Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean areaEfficacyFlumethrinFluvalinatePersistenceResistanceVarroa jacobsoniAn apiary trial was conducted in 1997 in Sardinia, Italy, to verify the effectiveness of fluvalinate in polyvinyl chloride strips and flumethrin in polyethylene strips against Varroa jacobsoni Oudemans. Two indices to evaluate the efficacy of the treatments were adopted: percentage change in mite infestation of worker-sealed brood cells considering only treated hives and percentage change in mite mortality, and the natural variation in mite populations recorded in control hives during the trial. All acaricide treatments reduced the level of mite infestation of both sealed brood and adult bees. However, their effectiveness was slightly reduced in comparison to previous studies because of mite resistance phenomena. Portions of polyethylene strips of flumethrin from treated hives were sampled weekly to determine acaricide persistence using gas chromatography. After 4 wk, a slight reduction (≈9%) of the active ingredient content was observed. A laboratory bioassay also was performed to establish the resistance of adult female mites to fluvalinate. Mites were sampled from the experimental apiary and from various Sardinian apiaries which had primarily been subjected to fluvalinate applications in plastic strips or wood inserts for years. Mite resistance varied from O to 96%, depending on the acaricide management adopted. The lowest resistance level occurred in an apiary where pyrethroids had never been used, whereas the highest level occurred in an apiary with intensive use of fluvalinate in wood inserts. © 2001 Entomological Society of America.Dipartimento di Protezione delle Piante Sezione di Entomologia Agraria, Via E. De Nicola, 07100, SassariDipartimento di Tossicologia, Viale Diaz 182, 09126, CagliariUNESP Departamento de Quimica Organica, Araraquara, SPConsult Vita (Europe) c/o Dipartimento di Biologia Applicata alla Difesa delle Piante University of UdineUNESP Departamento de Quimica Organica, Araraquara, SPSezione di Entomologia AgrariaDipartimento di TossicologiaUniversidade Estadual Paulista (UNESP)University of UdineFloris, IgnazioCabras, PaoloGarau, Vincenzo L.Minelli, Elizabeth V. [UNESP]Satta, AlbertoTroullier, Jerome2022-04-28T19:55:22Z2022-04-28T19:55:22Z2001-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article806-810http://dx.doi.org/10.1603/0022-0493-94.4.806Journal of Economic Entomology, v. 94, n. 4, p. 806-810, 2001.0022-0493http://hdl.handle.net/11449/22422210.1603/0022-0493-94.4.8062-s2.0-0035430911Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Economic Entomologyinfo:eu-repo/semantics/openAccess2022-04-28T19:55:22Zoai:repositorio.unesp.br:11449/224222Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:33:44.040460Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
title |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
spellingShingle |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area Floris, Ignazio Efficacy Flumethrin Fluvalinate Persistence Resistance Varroa jacobsoni |
title_short |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
title_full |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
title_fullStr |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
title_full_unstemmed |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
title_sort |
Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari: Varroidae) and mite resistance in a Mediterranean area |
author |
Floris, Ignazio |
author_facet |
Floris, Ignazio Cabras, Paolo Garau, Vincenzo L. Minelli, Elizabeth V. [UNESP] Satta, Alberto Troullier, Jerome |
author_role |
author |
author2 |
Cabras, Paolo Garau, Vincenzo L. Minelli, Elizabeth V. [UNESP] Satta, Alberto Troullier, Jerome |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sezione di Entomologia Agraria Dipartimento di Tossicologia Universidade Estadual Paulista (UNESP) University of Udine |
dc.contributor.author.fl_str_mv |
Floris, Ignazio Cabras, Paolo Garau, Vincenzo L. Minelli, Elizabeth V. [UNESP] Satta, Alberto Troullier, Jerome |
dc.subject.por.fl_str_mv |
Efficacy Flumethrin Fluvalinate Persistence Resistance Varroa jacobsoni |
topic |
Efficacy Flumethrin Fluvalinate Persistence Resistance Varroa jacobsoni |
description |
An apiary trial was conducted in 1997 in Sardinia, Italy, to verify the effectiveness of fluvalinate in polyvinyl chloride strips and flumethrin in polyethylene strips against Varroa jacobsoni Oudemans. Two indices to evaluate the efficacy of the treatments were adopted: percentage change in mite infestation of worker-sealed brood cells considering only treated hives and percentage change in mite mortality, and the natural variation in mite populations recorded in control hives during the trial. All acaricide treatments reduced the level of mite infestation of both sealed brood and adult bees. However, their effectiveness was slightly reduced in comparison to previous studies because of mite resistance phenomena. Portions of polyethylene strips of flumethrin from treated hives were sampled weekly to determine acaricide persistence using gas chromatography. After 4 wk, a slight reduction (≈9%) of the active ingredient content was observed. A laboratory bioassay also was performed to establish the resistance of adult female mites to fluvalinate. Mites were sampled from the experimental apiary and from various Sardinian apiaries which had primarily been subjected to fluvalinate applications in plastic strips or wood inserts for years. Mite resistance varied from O to 96%, depending on the acaricide management adopted. The lowest resistance level occurred in an apiary where pyrethroids had never been used, whereas the highest level occurred in an apiary with intensive use of fluvalinate in wood inserts. © 2001 Entomological Society of America. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-01-01 2022-04-28T19:55:22Z 2022-04-28T19:55:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1603/0022-0493-94.4.806 Journal of Economic Entomology, v. 94, n. 4, p. 806-810, 2001. 0022-0493 http://hdl.handle.net/11449/224222 10.1603/0022-0493-94.4.806 2-s2.0-0035430911 |
url |
http://dx.doi.org/10.1603/0022-0493-94.4.806 http://hdl.handle.net/11449/224222 |
identifier_str_mv |
Journal of Economic Entomology, v. 94, n. 4, p. 806-810, 2001. 0022-0493 10.1603/0022-0493-94.4.806 2-s2.0-0035430911 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Economic Entomology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
806-810 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128532067385344 |