Feeding preference of Euborellia annulipes to Plutella xylostella: effects of temperature and prey development stage

Authors

  • Gilmar da Silva Nunes Universidade Federal da Paraíba
  • Hágabo Honorato de Paulo Universidade Estadual Paulista/Pós-Graduação em Agronomia (Entomologia Agrícola)
  • Welliny Soares Rocha Dias Universidade Estadual Paulista/Pós-Graduação em Agronomia (Entomologia Agrícola)
  • Sergio Antonio De Bortoli Universidade Estadual Paulista/Pós-Graduação em Agronomia (Entomologia Agrícola)

Abstract

The ring-legged earwig Euborellia annulipes has been studied as a natural enemy of pest-insects and a potential predator of diamondback moth. Temperature is an important factor that mediates the pest population density and may affect the predator-prey relationship dynamics. This study aimed to evaluate the effect of the temperature and development stage of Plutella xylostella individuals on the feeding preference of E. annulipes females. Three temperatures (18 ºC, 25 ºC and 32 ºC), two development stages (larvae and pupae) and two feeding conditions related to the prey capture (with or without choice) were assessed. No matter the temperature, ring-legged earwig females showed a preference for eating larvae, instead of pupae. The temperature and choice conditions influenced the amount of consumed preys, but only for larvae (not for pupae). The lowest larvae consumption was observed at 18 ºC, in both prey capture conditions.


KEYWORDS: Biological control, brassicas, earwig, integrated pest management, thermal conditions.

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Published

2020-02-27

How to Cite

NUNES, G. da S.; DE PAULO, H. H.; DIAS, W. S. R.; DE BORTOLI, S. A. Feeding preference of Euborellia annulipes to Plutella xylostella: effects of temperature and prey development stage. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 50, p. e57778, 2020. Disponível em: https://revistas.ufg.br/pat/article/view/57778. Acesso em: 19 dec. 2024.

Issue

Vol. 50 (2020)

Section

Research Article

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