Long-Term Mass Rearing Impacts Performance of the Egg Parasitoid Telenomus remus (Hymenoptera: Platygastridae)

Autor: Adriana C. Morales-Corrêa e Castro, Luan Alberto Odorizzi dos Santos, Natalia Naranjo-Guevara, Nara Cristina Chiarina Pena Barbosa, Odair Aparecido Fernandes
Přispěvatelé: Universidade Estadual Paulista (Unesp)
Rok vydání: 2020
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 0749-8004
Popis: Made available in DSpace on 2020-12-12T01:53:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 The effects of long-term laboratory rearing on the performance of Telenomus remus Nixon (Hymenoptera: Platygastridae), an egg parasitoid of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), were investigated by comparing a laboratory-reared strain with a wild strain of the parasitoid. Restriction fragment length polymorphism revealed no genetic variation between the two strains. The wild strain exhibited a higher level of egg parasitism, a longer reproductive period, and a higher level of fecundity than did the laboratory-reared strain while developmental time and female longevity did not differ between the strains. Furthermore, host search efficiency and flight ability were superior in the wild strain compared to the laboratory strain, but oviposition behavior did not differ. Our results indicate that, over time, laboratory rearing may select for individuals that are less fertile, less aggressive, and have lower flight activity than their wild counterparts, which also exhibit a higher parasitism performance and superior potential for population increase in a shorter period of time. Implications for biological control using T. remus and strategies to avoid losses of parasitism efficiency are discussed. Departamento de Fitossanidade Laboratório de Ecologia Aplicada (APECOLAB) Universidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade Laboratório de Ecologia Aplicada (APECOLAB) Universidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e Veterinárias
Databáze: OpenAIRE