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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
23/11/2000 |
Data da última atualização: |
09/03/2006 |
Autoria: |
PRANDO, H. F.; SOSA-GOMEZ, D.R.; ROSADO NETO, G. H. |
Título: |
Biological aspects of oryzophagus oryzae (Coleoptera: curculionidae) in water-seeded rice. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000. |
Volume: |
v.1 |
Páginas: |
p.281. |
Idioma: |
Inglês |
Conteúdo: |
In Santa Catarina state (SC), Brazil, around 135 thousand ha of irrigated rice are cultivated under the water-seeded system. The main insect-pest in this system is Oryzophagus oryzae. Adults and larvae attack the crop. The adults cause greater damage on germinated seeds, by eliminating the epicotyl and radicle right after sowing, or on seedlings. The larvae attack the irrigated rice roots. The present research was conducted during 1997/1998 growing periods, with the purpose of investigating the biology of this pest. Adults insects were collected in Itajai SC for identification and morphological studies. At the laboratory, the oviposition site, fertility and incubation period were observed. Larval instar were based on measurements of the head capsule. O. oryzae presents a well-defined sexual dimorphism, with females being larger than males (3.44 mm and 2.85 mm, respectively). Morphological characteristics are evident on the ventral side of the insect. The oviposition takes place on the rice plants sheath, preferably in the submersed parts. The eggs, white and slightly curved, are 0.88 mm long and 0.23 mm wide, and are located in each aerenchyma of the sheath. The average incubation period is 6.5 days inside the sheath, feeding on the divisory membranes of aerenchyma. They leave the sheath through a circular orifice at 6-10 days after oviposition. The larvae are white almost transparent in the first instar, and yellowish white in the subsequent instar. They are apodal, have six pairs of spiracles on the dorsal abdomen, which bears strongly sclerotized hook-like structures. Head capsules measurements evidence five larval instars: I (0.18 mm), II (0.24 mm), III (0.31 mm), IV (0.37 mm) and V (0.46 mm). The cocoons are impermeable, made of clay and plant residues. The attach firmly to young roots, from where the pupa removes its O2 supply. Inside the cocoon, the rostrum of the pupa is always turned to the fixation root. MenosIn Santa Catarina state (SC), Brazil, around 135 thousand ha of irrigated rice are cultivated under the water-seeded system. The main insect-pest in this system is Oryzophagus oryzae. Adults and larvae attack the crop. The adults cause greater damage on germinated seeds, by eliminating the epicotyl and radicle right after sowing, or on seedlings. The larvae attack the irrigated rice roots. The present research was conducted during 1997/1998 growing periods, with the purpose of investigating the biology of this pest. Adults insects were collected in Itajai SC for identification and morphological studies. At the laboratory, the oviposition site, fertility and incubation period were observed. Larval instar were based on measurements of the head capsule. O. oryzae presents a well-defined sexual dimorphism, with females being larger than males (3.44 mm and 2.85 mm, respectively). Morphological characteristics are evident on the ventral side of the insect. The oviposition takes place on the rice plants sheath, preferably in the submersed parts. The eggs, white and slightly curved, are 0.88 mm long and 0.23 mm wide, and are located in each aerenchyma of the sheath. The average incubation period is 6.5 days inside the sheath, feeding on the divisory membranes of aerenchyma. They leave the sheath through a circular orifice at 6-10 days after oviposition. The larvae are white almost transparent in the first instar, and yellowish white in the subsequent instar. They are apodal, have si... Mostrar Tudo |
Palavras-Chave: |
Behaviour; Brasil; Comportamento; Inseto praga; Morfologia; Morphology; Ovoposicao; Pest insects. |
Thesagro: |
Arroz; Oryzophagus Oryzae. |
Thesaurus Nal: |
Brazil; Insecta; oviposition; rice. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02858naa a2200337 a 4500 001 1462583 005 2006-03-09 008 2000 bl uuuu u00u1 u #d 100 1 $aPRANDO, H. F. 245 $aBiological aspects of oryzophagus oryzae (Coleoptera$bcurculionidae) in water-seeded rice. 260 $c2000 300 $ap.281. v.1 490 $vv.1 520 $aIn Santa Catarina state (SC), Brazil, around 135 thousand ha of irrigated rice are cultivated under the water-seeded system. The main insect-pest in this system is Oryzophagus oryzae. Adults and larvae attack the crop. The adults cause greater damage on germinated seeds, by eliminating the epicotyl and radicle right after sowing, or on seedlings. The larvae attack the irrigated rice roots. The present research was conducted during 1997/1998 growing periods, with the purpose of investigating the biology of this pest. Adults insects were collected in Itajai SC for identification and morphological studies. At the laboratory, the oviposition site, fertility and incubation period were observed. Larval instar were based on measurements of the head capsule. O. oryzae presents a well-defined sexual dimorphism, with females being larger than males (3.44 mm and 2.85 mm, respectively). Morphological characteristics are evident on the ventral side of the insect. The oviposition takes place on the rice plants sheath, preferably in the submersed parts. The eggs, white and slightly curved, are 0.88 mm long and 0.23 mm wide, and are located in each aerenchyma of the sheath. The average incubation period is 6.5 days inside the sheath, feeding on the divisory membranes of aerenchyma. They leave the sheath through a circular orifice at 6-10 days after oviposition. The larvae are white almost transparent in the first instar, and yellowish white in the subsequent instar. They are apodal, have six pairs of spiracles on the dorsal abdomen, which bears strongly sclerotized hook-like structures. Head capsules measurements evidence five larval instars: I (0.18 mm), II (0.24 mm), III (0.31 mm), IV (0.37 mm) and V (0.46 mm). The cocoons are impermeable, made of clay and plant residues. The attach firmly to young roots, from where the pupa removes its O2 supply. Inside the cocoon, the rostrum of the pupa is always turned to the fixation root. 650 $aBrazil 650 $aInsecta 650 $aoviposition 650 $arice 650 $aArroz 650 $aOryzophagus Oryzae 653 $aBehaviour 653 $aBrasil 653 $aComportamento 653 $aInseto praga 653 $aMorfologia 653 $aMorphology 653 $aOvoposicao 653 $aPest insects 700 1 $aSOSA-GOMEZ, D.R. 700 1 $aROSADO NETO, G. H. 773 $tIn: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000.
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Embrapa Soja (CNPSO) |
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Registros recuperados : 14 | |
9. | | SANTANA, D. L. Q.; PASSOS, E. E. M.; WARWICK, D. R. N.; MOURA, J. I. L.; ROSADO NETO, G. H. Ocorrência de Plectrophoroides incertus voss (Coleoptera: Curculionidae) em coqueiro no Estado do Sergipe. Anais da Sociedade Entomológica do Brasil, Jaboticabal, v. 25, n. 1, p. 145-146, 1996.Tipo: Artigo em Periódico Indexado |
Biblioteca(s): Embrapa Milho e Sorgo. |
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11. | | ANDRADE, D. P. de; QUEIROZ, E. C. de; ROSADO-NETO, G. H.; SANTOS, A. F. dos; QUEIROZ, D. L. de. Ocorrência de três espécies de coleoptera do gênero Homalinotus (Curculionidae: Molytinae) em pupunha (Bactris gasipaes). In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 8., 2009, Colombo. Anais. Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 186). EVINCI. Resumo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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12. | | THOMAZ, D. T.; SANTANA, D. L. de Q.; ROSADO-NETO, G. H.; MEDEIROS, A. C. de S.; ABREU, D. C. A. de; WINK, C.; ROVEDO, S. F. Herbivoria de insetos (Coleoptera: Curculionidae) em frutos, sementes e plântulas de guaçatonga (Casearia lasiophylla Eichl), na Região Metropolitana de Curitiba, Paraná, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 21., 2006, Recife. Entomologia: da academia à transferência de tecnologia: resumos. Recife: Sociedade Entomológica do Brasil, 2006. CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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13. | | MARSARO JÚNIOR, A. L.; PEREIRA, P. R. V. da S.; ROSADO NETO, G. H.; KAMINSKI, P. E.; AGUIAR, R. M. de; OLIVEIRA, L. O. Primeiros registros de Sitophilus linearis Herbst e Lonchophorus chevrolati Gyllenhal (Coleoptera: Curculionidae) para o estado de Roraima. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia: Emparn, 2010. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Trigo. |
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14. | | MARSARO JUNIOR, A. L.; PEREIRA, P. R. V. da S.; ROSADO NETO, G. H.; KAMINSKI, P. E.; AGUIAR, R. M. de; OLIVEIRA, L. O. Primeiros registros de Sitophilus linearis herbst e Lonchophorus chevrolati gyllenhal (Coleoptera: Curculionidae) para o estado de Roraima. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia: Emparn, 2010. 1 CD-ROMTipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Roraima. |
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Registros recuperados : 14 | |
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