Persistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari : Varroidae) and mite resistance in a mediterranean area

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dc.contributor.authorFloris, I
dc.contributor.authorCabras, P.
dc.contributor.authorGarau, V. L.
dc.contributor.authorMinelli, E. V.
dc.contributor.authorSatta, A.
dc.contributor.authorTroullier, J.
dc.contributor.institutionUniv Sassari
dc.contributor.institutionUniv Cagliari
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Udine
dc.date.accessioned2014-05-20T15:26:51Z
dc.date.available2014-05-20T15:26:51Z
dc.date.issued2001-08-01
dc.description.abstractAn 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 (approximate to9%) 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 0 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.en
dc.description.affiliationUniv Sassari, Dipartimento Prot Piante, Sez Entomol Agr, I-07100 Sassari, Italy
dc.description.affiliationUniv Cagliari, Dipartimento Tossicol, I-09126 Cagliari, Italy
dc.description.affiliationUNESP, Dept Quim Organ, Araraquara, SP, Brazil
dc.description.affiliationUniv Udine, Dipartimento Biol Applicata Difesa Piante, Consult Vita Europe, I-33100 Udine, Italy
dc.description.affiliationUnespUNESP, Dept Quim Organ, Araraquara, SP, Brazil
dc.format.extent806-810
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/11561836
dc.identifier.citationJournal of Economic Entomology. Lanham: Entomol Soc Amer, v. 94, n. 4, p. 806-810, 2001.
dc.identifier.issn0022-0493
dc.identifier.urihttp://hdl.handle.net/11449/36928
dc.identifier.wosWOS:000170920500003
dc.language.isoeng
dc.publisherAmer Entomol Soc
dc.relation.ispartofJournal of Economic Entomology
dc.relation.ispartofjcr1.936
dc.relation.ispartofsjr0,936
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectVarroa jacobsonipt
dc.subjectfluvalinatept
dc.subjectflumethrinpt
dc.subjectefficacypt
dc.subjectpersistencept
dc.subjectresistancept
dc.titlePersistence and effectiveness of pyrethroids in plastic strips against Varroa jacobsoni (Acari : Varroidae) and mite resistance in a mediterranean areaen
dc.typeArtigo
dcterms.licensehttp://www.entsoc.org/PDF/Pubs/Publish/Policies/Publishing_Agreement.pdf
dcterms.rightsHolderEntomol Soc Amer
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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