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Provedor de dados:  Biological Sciences
País:  Brazil
Título:  Selection of parasitoids of the genus Trichogramma (Hymenoptera: Trichogrammatidae) and parasitism at different eggs ages of Duponchelia fovealis (Lepidoptera: Crambidae)
Autores:  Paes, João Paulo Pereira
Lima, Victor Luiz Souza
Pratisolli, Dirceu
Carvalho, José Romário de
Bueno, Regiane Cristina Oliveira de Freitas
Data:  2018-07-01
Ano:  2018
Palavras-chave:  Biological control
Egg parasitoid
Parasitism percentage
European pepper moth
Host age.
Resumo:   The European pepper moth Duponchelia fovealis (Zeller, 1847) (Lepidoptera: Crambidae), despite being among the principal pests of strawberries in Brazil. However, biological control methods are rarely documented for this pest. In the current study, the goal was to select promising Trichogramma strains to enable the control of D. fovealis and to determine the acceptance of different ages of host eggs by the parasitoid. In the first bioassay, evaluations were done on the biological parameters of five strains of Trichogramma pretiosum Riley and one of Trichogramma galloi Zucchi (Hymenoptera: Trichogrammatidae). The best performance came from the strains, Tp18 (T. pretiosum) and Tg (T. galloi), showing parasitism and viability higher than 50 and 90%, respectively. Another bioassay revealed the acceptance of both these species (Tp18 and Tg) for different ages of D. fovealis eggs. All host ages were accepted by T. pretiosum (Tp18) and T. galloi, with a preference for younger eggs (65% parasitism). Adult emergence, number of individuals per egg and sex ratio revealed no significant differences with respect to the host age. The current study provides pertinent data on the selection and performance of Trichogramma species on D. fovealis eggs of different ages. 
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42216

10.4025/actascibiolsci.v40i1.42216
Editor:  Universidade Estadual De Maringá
Relação:  http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42216/pdf
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/42216/17849
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/42216/17851
Formato:  application/pdf
Fonte:  Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e42216

Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e42216

1807-863X

1679-9283
Direitos:  Direitos autorais 2018 Acta Scientiarum. Biological Sciences

http://creativecommons.org/licenses/by/4.0
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