Data/hora: 18/06/2024 04:15:50

Biblioteca(s): | Embrapa Recursos Genéticos e Biotecnologia; Embrapa Unidades Centrais.
Data corrente: | 20/10/2006
Data da última atualização: | 11/07/2022
Autoria: | SILVA, C. C.; MORAES, M. C. B.; LAUMANN, R. A.; BORGES, M.
Título: | Sensory response of the egg parasitoid Telenomus podisi to stimuli from the bug Euschistus heros.
Título original: | Resposta sensorial do parasitóide de ovos Telenomus podisi a estímulos provenientes do percevejo Euschistus heros.
Ano de publicação: | 2006
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, v. 41, n. 7, p. 1093-1098, 2006.
Idioma: | Inglês
Conteúdo: | The objective of this work was to study the foraging behavior of Telenomus podisi Ashmead (Hymenoptera: Scelionidae) in the presence of stimuli from its host, Euschistus heros (Heteroptera: Pentatomidae). The stimuli selected were: egg mass; virgin males and females; volatile extracts of sexually mature males and females; components of male sex pheromone; a component of the alarm pheromone, hexane and an empty cage as control. In a closed arena, the parasitoids were given the choice between single and combined stimuli presented to them simultaneously. To find the host egg, T. podisi primarily uses the sensory cues released from the male insects. The orientation toward odors of male chemical extract indicates that a source of kairomone was detected. Gas chromatographic analyses of this substance showed peak of methyl 2,6,10-trimethyltridecanoate, the main component of male sexual pheromone. The sensory response to methyl 2,6,10-trimethyltridecanoate confirms that this compound may act as a kairomone to find host eggs. Females and egg mass stimuli were weakly attractive to the parasitoid.
Palavras-Chave: | combinação de estímulos; combination of stimuli; comportamento de busca; feromônio sexual; forage behavior; Insect; olfactory response; resposta olfativa; sex pheromone; Telenomus podisi.
Thesagro: | Euschistus Heros; Inseto; Percevejo.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/36291/1/41n07a04.pdf
Registro original: | Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)

Exemplares:

AI-SEDE - (36291-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CENARGEN - (27886-1) - UPC - AP - DD - SP 19197 -  - 19197 - DIS