Data/hora: 24/06/2024 22:22:49

Biblioteca(s): | Embrapa Soja.
Data corrente: | 12/02/2015
Data da última atualização: | 25/07/2017
Autoria: | BUENO, R. C. O. de F.; BUENO, A. de F.; XAVIER, M. F. da C.; CARVALHO, M. M.
Afiliação: | REGIANE CRISTINA OLIVEIRA DE FREITAS BUENO; ADENEY DE FREITAS BUENO, CNPSO; MARIA FERNANDA DA COSTA XAVIER; MARINA MOUZINHO CARVALHO.
Título: | Telenomus remus (Hymenoptera: Platygastridae) parasitism on eggs of Anticarsia gemmatalis (Lepidoptera: Eribidae) compared with its natural host Spodoptera frugiperda (Lepidoptera: Noctuidae).
Ano de publicação: | 2014
Fonte/Imprenta: | Annals of the Entomological Society of America, Annapolis, v. 107, n. 4, p. 799-808, 2014.
Idioma: | Português
Conteúdo: | The capacity of Telenomus remus to parasitize eggs of Anticarsia gemmatalis, compared with its natural host, Spodoptera frugiperda, was evaluated under different temperatures. The parasitoid T. remus was reared at 25 ± 1°C for a single generation on both hosts. After reaching the adult stage, they were allowed to parasitize both hosts to study parasitoid biology and parasitism capacity at temperatures between 19°C and 37 ± 1°C. Egg-to-adult developmental time was similar on both hosts. The number of A. gemmatalis eggs parasitized was lower than that of S. frugiperda eggs at all temperatures. Parental female longevity of parasitoids was greater on A. gemmatalis eggs. This indicated a smaller metabolic expense during parasitism, acommonfeature observed on nonpreferable hosts. In general, sex ratio was little affected by temperature or hosts. When parental T. remus were reared on A. gemmatalis before the experiment, base temperature (Tb) and the thermal constant (K) were 9.53°C and 209.57 DD on eggs of A. gemmatalis and 9.68°C and 197.79 DD on eggs of S. frugiperda, respectively. When parental T. remus were reared on S. frugiperda eggs, Tb and K were 10.12°C and 188.46 DD and 9.69°C and 190.24 DD for the evaluated host eggs of A. gemmatalis and S. frugiperda, respectively. Therefore, T. remus develops in eggs of A. gemmatalis. This can be beneficial for its use in field crops where outbreaks of both Spodoptera spp. and A. gemmatalis occur. However, A. gemmatalis is a less favorable host for the parasitoid development.
Thesagro: | Controle biológico; Praga de planta.
Thesaurus Nal: | Biological control; Plant pests.
Categoria do assunto: | O Insetos e Entomologia
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (35722-1) - UPC - AP - DD -  -  -  - DIS