Cargando…

Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize

We characterized the dynamics of mortality factors affecting immature developmental stages of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Multiple decrement life tables for egg and early larval stages of S. frugiperda in maize (Zea mays L.) fields were developed w...

Descripción completa

Detalles Bibliográficos
Autores principales: Varella, Andrea Corrêa, Menezes-Netto, Alexandre Carlos, Alonso, Juliana Duarte de Souza, Caixeta, Daniel Ferreira, Peterson, Robert K. D., Fernandes, Odair Aparecido
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4476731/
https://www.ncbi.nlm.nih.gov/pubmed/26098422
http://dx.doi.org/10.1371/journal.pone.0130437
_version_ 1782377643977474048
author Varella, Andrea Corrêa
Menezes-Netto, Alexandre Carlos
Alonso, Juliana Duarte de Souza
Caixeta, Daniel Ferreira
Peterson, Robert K. D.
Fernandes, Odair Aparecido
author_facet Varella, Andrea Corrêa
Menezes-Netto, Alexandre Carlos
Alonso, Juliana Duarte de Souza
Caixeta, Daniel Ferreira
Peterson, Robert K. D.
Fernandes, Odair Aparecido
author_sort Varella, Andrea Corrêa
collection PubMed
description We characterized the dynamics of mortality factors affecting immature developmental stages of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Multiple decrement life tables for egg and early larval stages of S. frugiperda in maize (Zea mays L.) fields were developed with and without augmentative releases of Telenomus remus Nixon (Hymenoptera: Platygastridae) from 2009 to 2011. Total egg mortality ranged from 73 to 81% and the greatest egg mortality was due to inviability, dislodgement, and predation. Parasitoids did not cause significant mortality in egg or early larval stages and the releases of T. remus did not increase egg mortality. Greater than 95% of early larvae died from predation, drowning, and dislodgment by rainfall. Total mortality due to these factors was largely irreplaceable. Results indicate that a greater effect in reducing generational survival may be achieved by adding mortality to the early larval stage of S. frugiperda.
format Online
Article
Text
id pubmed-4476731
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-44767312015-06-25 Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize Varella, Andrea Corrêa Menezes-Netto, Alexandre Carlos Alonso, Juliana Duarte de Souza Caixeta, Daniel Ferreira Peterson, Robert K. D. Fernandes, Odair Aparecido PLoS One Research Article We characterized the dynamics of mortality factors affecting immature developmental stages of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Multiple decrement life tables for egg and early larval stages of S. frugiperda in maize (Zea mays L.) fields were developed with and without augmentative releases of Telenomus remus Nixon (Hymenoptera: Platygastridae) from 2009 to 2011. Total egg mortality ranged from 73 to 81% and the greatest egg mortality was due to inviability, dislodgement, and predation. Parasitoids did not cause significant mortality in egg or early larval stages and the releases of T. remus did not increase egg mortality. Greater than 95% of early larvae died from predation, drowning, and dislodgment by rainfall. Total mortality due to these factors was largely irreplaceable. Results indicate that a greater effect in reducing generational survival may be achieved by adding mortality to the early larval stage of S. frugiperda. Public Library of Science 2015-06-22 /pmc/articles/PMC4476731/ /pubmed/26098422 http://dx.doi.org/10.1371/journal.pone.0130437 Text en © 2015 Varella et al http://creativecommons.org/licenses/by/4.0/ 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 properly credited.
spellingShingle Research Article
Varella, Andrea Corrêa
Menezes-Netto, Alexandre Carlos
Alonso, Juliana Duarte de Souza
Caixeta, Daniel Ferreira
Peterson, Robert K. D.
Fernandes, Odair Aparecido
Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title_full Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title_fullStr Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title_full_unstemmed Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title_short Mortality Dynamics of Spodoptera frugiperda (Lepidoptera: Noctuidae) Immatures in Maize
title_sort mortality dynamics of spodoptera frugiperda (lepidoptera: noctuidae) immatures in maize
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4476731/
https://www.ncbi.nlm.nih.gov/pubmed/26098422
http://dx.doi.org/10.1371/journal.pone.0130437
work_keys_str_mv AT varellaandreacorrea mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize
AT menezesnettoalexandrecarlos mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize
AT alonsojulianaduartedesouza mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize
AT caixetadanielferreira mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize
AT petersonrobertkd mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize
AT fernandesodairaparecido mortalitydynamicsofspodopterafrugiperdalepidopteranoctuidaeimmaturesinmaize