Action of the insect growth regulator fluazuron, the active ingredient of the acaricide Acatak®, in Rhipicephalus sanguineus nymphs (Latreille, 1806) (Acari: Ixodidae)

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dc.contributor.authorCalligaris, Izabela Braggião
dc.contributor.authorOliveira, Patricia Rosa de
dc.contributor.authorRoma, Gislaine Cristina
dc.contributor.authorBechara, Gervásio Henrique
dc.contributor.authorCamargo-Mathias, Maria Izabel
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:30:39Z
dc.date.available2014-05-27T11:30:39Z
dc.date.issued2013-09-05
dc.description.abstractThe present study evaluated the efficacy of fluazuron (active ingredient of the acaricide Acatak®) and its effects on Rhipicephalus sanguineus nymphs fed on rabbits exposed to different doses of this insect growth regulator. Three different doses of fluazuron (20 mg/kg, 40 mg/kg, and 80 mg/kg) were applied on the back of hosts (via pour on), while distilled water was applied to the Control group. On the first day of treatment with fluazuron (24 h), hosts were artificially infested with R. sanguineus nymphs. Once fully engorged, nymphs were removed and placed in identified Petri dishes in Biochemical Oxygen Demand (BOD) incubator for 7 days. After this period, engorged nymphs were processed for ultramorphological analysis. The results revealed alterations in the ultramorphology of many chitinous structures (smaller hypostome and chelicerae, less sclerotized scutum, fewer sensilla, fewer pores, absence of grooves, marginal and cervical strips and festoons in the body, even the anal plaque was damaged) that play essential roles for the survivor of ticks and that can compromise the total or partial development of nymphs and emergence of adults after periodic molting. Our findings confirm the efficacy of fluazuron, a more specific and less aggressive chemical to the environment and human health, and that does not induce resistance, in nymphs of the tick R. sanguineus in artificially infested rabbits treated with this arthropod growth regulator (AGR), indicating that it could be used in the control of this stage of the biological cycle of the tick R. sanguineus. © 2013 Wiley Periodicals, Inc.en
dc.identifierhttp://dx.doi.org/10.1002/jemt.22282
dc.identifier.citationMicroscopy Research and Technique.
dc.identifier.doi10.1002/jemt.22282
dc.identifier.issn1059-910X
dc.identifier.issn1097-0029
dc.identifier.lattes2382374201685423
dc.identifier.scopus2-s2.0-84883241817
dc.identifier.urihttp://hdl.handle.net/11449/76523
dc.identifier.wosWOS:000326023800012
dc.language.isoeng
dc.relation.ispartofMicroscopy Research and Technique
dc.relation.ispartofjcr1.087
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAcaricide
dc.subjectControl
dc.subjectCuticle
dc.subjectIntegument
dc.subjectTicks
dc.titleAction of the insect growth regulator fluazuron, the active ingredient of the acaricide Acatak®, in Rhipicephalus sanguineus nymphs (Latreille, 1806) (Acari: Ixodidae)en
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
unesp.author.lattes2382374201685423
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentPatologia Veterinária - FCAVpt

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