Data/hora: 03/06/2024 04:55:32

Provedor de dados: | 86
País: | Brazil
Título: | Inter and intra-guild interactions in egg parasitoid species of the soybean stink bug complex
Autores: | Sujii,Edison Ryoiti; Costa,Maria Luiza Marcico; Pires,Carmen Silvia Soares; Colazza,Stefano; Borges,Miguel.
Data: | 2002-11-01
Ano: | 2002
Palavras-chave: | Parasitism; Host-parasite relations; Biological competition; Pest control methods.
Resumo: | The objective of this research was to evaluate the parasitism behavior of Telenomus podisi Ashmead, Trissolcus basalis (Wollaston) e Trissolcus urichi Crawford (Hymenoptera: Scelionidae) on eggs of Nezara viridula L., Euschistus heros F., Piezodorus guildinii Westwood and Acrosternum aseadum Rolston (Heteroptera: Pentatomidae), in no choice and multiple choice experiments. For all parasitoid species, the results demonstrated the existence of a main host species that maximizes the reproductive success. The competitive interactions among the parasitoid species were investigated in experiments of sequential and simultaneous release of different combinations of parasitoid pairs on the hosts N. viridula, E. heros and A. aseadum. Exploitative competition was observed for egg batches at the genus level (Telenomus vs. Trissolcus) and interference competition at the species level (T. basalis vs. T. urichi). Trissolcus urichi was the most aggressive species, interfering with the parasitism of T. basalis. Generally, T. basalis showed an opportunistic behavior trying to parasitise eggs after T. urichi had abandoned the egg batch. The selection of parasitoid species for use in augmentative biological control programs should take into account the diversity of pentatomids present in soybean in addition to the interactions among the different species of parasitoids.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002001100004

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2002001100004
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.37 n.11 2002
Fonte: | info:eu-repo/semantics/openAccess