Show simple item record

dc.contributor.authorda Silva Oliveira, Marina Gomes [UNESP]
dc.contributor.authorSerikawa, Rosana Harumi
dc.contributor.authorda Silva, Fábio Maximiano Andrade
dc.contributor.authorFernandes, Odair Aparecido [UNESP]
dc.description.abstractChysodeixis includens and Helicoverpa armigera can negatively impact soybean yield due to defoliation and direct injury on the pods, respectively. Insecticides, such as indoxacarb, are still an important controlling tool to manage these insects. To support Integrated Pest Management (IPM) and Insect Resistance Management (IRM) as well as to reduce product decantation during storage and nozzle clogging in field application, a new indoxacarb formulation (emulsifiable concentrate - EC) was developed to replace the suspension concentrate formulation (SC). The objective of this study was to evaluate the susceptibility and compare the residual effects of two indoxacarb formulations on C. includens and H. armigera on soybean. A dose-response curve and the residual effect from in-field application were obtained using a laboratory strain of both insect pests. Soybean leaflets were collected and dipped into aqueous indoxacarb solutions. The evaluations were performed 96 h after the infestation to calculate the insect mortality percentage and foliar damage. Also, plants were sprayed in the field and leaflets from mid and upper regions of the plants were collected and used to feed third-instar larvae of both species. Results demonstrated that C. includens and H. armigera are similary sensitive to indoxacarb. The residual activity was up to 1 h after application for H. armigera and up to 3 days for C. includens. No difference was observed on this activity between mid and upper regions of the plant. Overall, the enhanced EC formulation is as effective as the SC formulation for the control of both species on soybean.en
dc.subjectChrysodeixis includens
dc.subjectDose-response curve
dc.subjectHelicoverpa armigera
dc.subjectResidual activity
dc.titleSusceptibility and residual effect of indoxacarb formulations on major soybean lepidopteran pestsen
dc.contributor.institutionCorteva Agriscience
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFMC Agricultural Solutions
dc.description.affiliationCorteva Agriscience
dc.description.affiliationSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)
dc.description.affiliationFMC Agricultural Solutions
dc.description.affiliationUnespSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)
Localize o texto completo

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record