Beauveria bassiana (Ascomycota: Hypocreales)-treated Diamondback Moth (Lepidoptera: Plutellidae) Larvae Mediate the Preference and Functional Response of Euborellia annulipes (Dermaptera: Anisolabididae) Nymphs
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Data
2019-12-01
Autores
Nunes, Gilmar da S. [UNESP]
Truzi, Caio C. [UNESP]
Nascimento, Joacir do [UNESP]
Paula, Flavia F. de [UNESP]
Matos, Sidneia T. S. de [UNESP]
Polanczyk, Ricardo A. [UNESP]
De Bortoli, Sergio A. [UNESP]
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Editor
Oxford Univ Press Inc
Resumo
Biological control is one of the strategies to reduce populations of diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), the major pest of brassica. Entomopathogen-based biopesticides are recommended and used for its control, reducing the constant use of chemical pesticides. Predators and/or fungal entomopathogens have an increasing interest to be used against diamondback moth, and the compatibility of these control agents in the field is important for pest management. Here we experimentally investigate the effects of diamondback moth larvae treated with a biopesticidal formulation of Beauveria bassiana (Balsamo) Vuillemin in the feeding preference and functional response of the ring-legged earwig. We used untreated and B. bassiana-treated diamondback moth fourth instars (over a 24-h period of exposure) and Euborellia annulipes (Lucas) fifth instars. The nymphs were included in choice condition tests and different larval densities to the analysis of feeding preference and functional responses, respectively. Euborellia annulipes nymphs exhibited no feeding preference under choice conditions but presented different types of functional response: Type II on untreated and type III on fungus-treated diamondback moth larvae. The interaction between E. annulipes and B. bassiana observed in our study contributes to the understanding of the predator-prey-pathogen relationships with implications for P. xylostella integrated management strategies.
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Palavras-chave
biopesticide, earwig, entomopathogenic fungus, trophic relationship
Como citar
Journal Of Economic Entomology. Cary: Oxford Univ Press Inc, v. 112, n. 6, p. 2614-2619, 2019.