| Revista: | Revista brasileira de entomologia |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000303149 |
| ISSN: | 0085-5626 |
| Autores: | Cardoso, Josiane Teresinha1 Lazzar, Sonia Maria Noemberg |
| Instituciones: | 1Universidade Federal do Parana, Departamento de Zoologia, Curitiba, Parana. Brasil |
| Año: | 2003 |
| Volumen: | 47 |
| Número: | 3 |
| Paginación: | 443-446 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The giant conifer aphids Cinara pinivora (Wilson, 1919) and Cinara atlantica (Wilson, 1919) (Hemiptera, Aphididae) have been observed attacking Pinus spp. in Southern and Southeastern Brazil. The coccinellids, on the other hand, were found feeding on these aphids in the field, which can be regarded as potential biological control agents. The biological cycle and mortality rate of larvae of Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Méneville, 1842 (Coleoptera, Coccinellidae) were evaluated using twenty larvae of each predator species fed with nymphs of Cinara. The vials with the insects were kept under 15 ºC, 20 ºC and 25 ºC, with 12h photophase and 70 ± 10% relative humidity. The consumption was evaluated every 24 hours and the nymphs replaced. For C. sanguinea, the egg incubation time was 10.5, 5.0 and 4.0 days; the average larval development period was 33.3, 15.8 and 8.6 days and the larval mortality rate 20%,0% and 15%, respectively at 15 ºC, 20 ºC and 25 ºC. For H. convergens, the larval development time was 41.9, 19.3 and 10.9 days at 15 ºC, 20 ºC and 25 ºC, respectively. The larval mortality rate was 35%, 15% and 0% under the three temperatures. Both species developed adequately when fed nymphs of Cinara, however, C. sanguinea performed better than H. convergens, even at 15 ºC, at which temperature the biological cycles of the coccinellids are prolonged, but the temperature is favorable for the development of Cinara populations in the field |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Fitopatología, Gimnospermas, Insectos, Control biológico, Afidos, Depredación, Cycloneda sanguinea, Hippodamia convergens, Coleoptera, Cinara, Hemiptera, Pinus |
| Keyword: | Agricultural sciences, Biology, Phytopathology, Gymnosperms, Insects, Biological control, Aphids, Predation, Cycloneda sanguinea, Hippodamia convergens, Coleoptera, Cinara, Hemiptera, Pinus |
| Texto completo: | Texto completo (Ver HTML) |
