Corn yield with reduction of insecticidal sprayings against fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)

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dc.contributor.authorPogetto, M. H. F. A. dal [UNESP]
dc.contributor.authorPrado, E. P. [UNESP]
dc.contributor.authorGimenes, M. J. [UNESP]
dc.contributor.authorChnstovam, R. S. [UNESP]
dc.contributor.authorRezende, D. T. [UNESP]
dc.contributor.authorAguiar-Júnior, H. O. [UNESP]
dc.contributor.authorCosta, S. I. A. [UNESP]
dc.contributor.authorRaetano, Carlos Gilberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:26:23Z
dc.date.available2014-05-27T11:26:23Z
dc.date.issued2012-02-01
dc.description.abstractThe ideal time is more important than amount of insecticidal spraying to adequate the control of Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) in corn. This study aimed to evaluate lufenuron sequential sprayings effect and its rotation with other active ingredients on the population, damage caused by S. frugiperda and the impact on corn yield. The experiment was carried out in the field with six treatments: (1) one lufenuron spraying, (2) two lufenuron sprayings, (3) three lufenuron sprayings (4) four lufenuron sprayings, (5) sprayings with spinosad, lufenuron, thiamethoxam+lambdacyhalothrin and deltamethrin (in sequence, at ten days intervals) (6) control treatment. Sprayings started twenty days after the seedling had emerged and then every ten days for a maximum of four sprays. Both caterpillar population (20.9-21.7 larvae/plot) and index of damage (1.2-1.7) observed in corn plants were significantly lower in treated plots compared to control (untreated) (31.7 larvae/plot and index of damage 2.7), regardless of spraying amount. The results showed that multiple insecticide applications to control S. frugiperda do not guarantee higher yields in corn, ranging from 6375.2 to 7650.1 kg ha -1. Only one spraying of lufenuron was enough to prevent significant reduction in corn yield (6749.9 kg ha -1). © 2012 Asian Network for Scientific Information.en
dc.description.affiliationDepartment of Vegetal Production UNESP-College of Agronomic Sciences, P.O. Box 237, 18610-307, Botucatu, São Paulo
dc.description.affiliationUnespDepartment of Vegetal Production UNESP-College of Agronomic Sciences, P.O. Box 237, 18610-307, Botucatu, São Paulo
dc.format.extent17-21
dc.identifierhttp://dx.doi.org/10.3923/ja.2012.17.21
dc.identifier.citationJournal of Agronomy, v. 11, n. 1, p. 17-21, 2012.
dc.identifier.doi10.3923/ja.2012.17.21
dc.identifier.issn1812-5379
dc.identifier.issn1812-5417
dc.identifier.lattes1801932562729311
dc.identifier.scopus2-s2.0-84856246425
dc.identifier.urihttp://hdl.handle.net/11449/73182
dc.language.isoeng
dc.relation.ispartofJournal of Agronomy
dc.relation.ispartofsjr0,210
dc.relation.ispartofsjr0,210
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDamage threshold
dc.subjectLufenuron
dc.subjectPest control
dc.subjectSpraying season
dc.subjectZea mays
dc.subjectLepidoptera
dc.subjectNoctuidae
dc.subjectSpodoptera frugiperda
dc.titleCorn yield with reduction of insecticidal sprayings against fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)en
dc.typeArtigo
dcterms.licensehttp://scialert.net/licence_to_publish.pdf
unesp.author.lattes1801932562729311[8]
unesp.author.orcid0000-0001-8897-9310[8]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentProdução e Melhoramento Vegetal - FCApt
unesp.departmentProteção Vegetal - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas