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dc.creatorFuentes Barrera, Ernesto Gabrieles_ES
dc.creatorHernández Suárez, Estrellaes_ES
dc.creatorSimón de Goñi, Oihanees_ES
dc.creatorWilliams, Trevores_ES
dc.creatorCaballero Murillo, Primitivoes_ES
dc.date.accessioned2018-09-06T12:20:22Z
dc.date.available2018-09-06T12:20:22Z
dc.date.issued2017
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/2454/30555
dc.description.abstractChrysodeixis chalcites, an important pest of banana crops on the Canary Islands, is usually controlled by chemical insecticides. The present study aimed to evaluate the efficacy of the most prevalent isolate of the Chrysodeixis chalcites nucleopolyhedrovirus (ChchNPV, Baculoviridae) as a biological insecticide. Overall the prevalence of ChchNPV infection in C. chalcites populations was 2.3% (103 infected larvae out of 4,438 sampled), but varied from 0±4.8% on Tenerife and was usually low (0±2%) on the other islands. On Tenerife, infected larvae were present at 11 out of 17 plantations sampled. The prevalence of infection in larvae on bananas grown under greenhouse structures was significantly higher (3%) than in open-field sites (1.4%). The ChchNPV-TF1 isolate was the most abundant and widespread of four genetic variants of the virus. Application of 1.0x109 viral occlusion bodies (OBs)/l of ChchNPV-TF1 significantly reduced C. chalcites foliar damage in young banana plants as did commonly used pesticides, both in greenhouse and open-field sites. The insecticidal efficacy of ChchNPV-TF1 was similar to that of indoxacarb and a Bacillus thuringiensis (Bt)- based insecticide in one year of trials and similar to Bt in the following year of trails in greenhouse and field crops. However, larvae collected at different time intervals following virus treatments and reared in the laboratory experienced 2±7 fold more mortality than insects from conventional insecticide treatments. This suggests that the acquisition of lethal dose occurred over an extended period (up to 7 days) compared to a brief peak in larvae on plants treated with conventional insecticides. These results should prove useful for the registration of a ChchNPV-based insecticide for integrated management of this pest in banana crops on the Canary Islands.en
dc.description.sponsorshipThis study received financial support from the National Institute of the Agricultural Research from the Spanish Ministry of Economy, Industry and Competitiveness project numbers RTA2010-00016-C02 and RTA2013-00114-C02 and from the Spanish Ministry for Science and Technology AGL2014-57752-C02-1R). E. G. F. received a student scholarship from National Institute of the Agricultural Research.en
dc.format.mimetypeapplication/pdfen
dc.format.mimetypeapplication/zipen
dc.language.isoengen
dc.publisherPublic Library of Scienceen
dc.relation.ispartofPlos One, 12(7): e0181384.en
dc.rights© 2017 Fuentes et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectChrysodeixis chalcites nucleopolyhedrovirus (ChchNPV)en
dc.subjectBanana plantsen
dc.subjectBiological insecticidesen
dc.subjectCanary islandsen
dc.titleChrysodeixis chalcites nucleopolyhedrovirus (ChchNPV): natural occurrence and efficacy as a biological insecticide on young banana plants in greenhouse and open-field conditions on the Canary Islandsen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Producción Agrariaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Nekazaritza Ekoizpena Sailaeu
dc.contributor.departmentIdAB – Instituto de Agrobiotecnología / Agrobioteknologiako Institutuaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.1371/journal.pone.0181384
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/RTA2013-00114en
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/AGL2014-57752en
dc.relation.publisherversionhttps://doi.org/10.1371/journal.pone.0181384
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes


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© 2017 Fuentes et al. This is an open
access article distributed under the terms of the
Creative Commons Attribution License, which
permits unrestricted use, distribution, and
reproduction in any medium, provided the original
author and source are credited.
Except where otherwise noted, this item's license is described as © 2017 Fuentes et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.