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| Registros recuperados : 234 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
10/05/2005 |
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Data da última atualização: |
12/03/2013 |
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Autoria: |
SOSA-GÓMEZ, D. R.; BORGES, E.; VIEIRA, I. H. T. L.; COSTA, F.; OLIVEIRA, C. N. |
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Título: |
Trypanosomatid prevalence in Nezara viridula (L.), Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood) (Heteroptera: Pentatomidae) populations in Northern Paraná, Brazil. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Neotropical Entomology, Piracicaba, v. 34, n. 2, p. 341-347, Mar./Apr. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The stink bug complex in soybeans has a great potential to cause damage, their control has been difficult due to high population densities at the end of the season. Studies related to entomopathogenic organisms in stink bugs are interesting for their possibilities to be used as biological control agents and because they could be an etiological agent in mass rearing. We determined the prevalence of trypanosomatids in the most important species of the stink bugs complex in soybean, from Brazil, Nezara viridula (L.) Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood). Insects were collected in soybean and on alternate hosts during the intercrop season. Hemolymph drops fromeach adult were mounted on slides and observed under microscope: stink bug numbers with and without flagellates were recorded. The flagellates found in P. guildinii or E. heros populations were smaller than that found in N. viridula. The higher prevalence of the trypanosomatids was observed on soybean reaching a peak of 30% of the sampled N. viridula specimens in January, 2001, and 44% prevalence in February, 2003. The maximum prevalences (16%) in P. guildinii were observed in January and February, 2003 and on July 27, 2003 with 20% of the specimens infected. Flagellates in the hemolymph of E. heros were less frequent (maximum prevalence of 8.7%), suggesting that this species is less susceptible than N. viridula and P. guildinii. Trypanosomatid prevalence was higher than that observed for entomopathogenic fungi, however they seem to be inefficient control agents in short term condition. MenosThe stink bug complex in soybeans has a great potential to cause damage, their control has been difficult due to high population densities at the end of the season. Studies related to entomopathogenic organisms in stink bugs are interesting for their possibilities to be used as biological control agents and because they could be an etiological agent in mass rearing. We determined the prevalence of trypanosomatids in the most important species of the stink bugs complex in soybean, from Brazil, Nezara viridula (L.) Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood). Insects were collected in soybean and on alternate hosts during the intercrop season. Hemolymph drops fromeach adult were mounted on slides and observed under microscope: stink bug numbers with and without flagellates were recorded. The flagellates found in P. guildinii or E. heros populations were smaller than that found in N. viridula. The higher prevalence of the trypanosomatids was observed on soybean reaching a peak of 30% of the sampled N. viridula specimens in January, 2001, and 44% prevalence in February, 2003. The maximum prevalences (16%) in P. guildinii were observed in January and February, 2003 and on July 27, 2003 with 20% of the specimens infected. Flagellates in the hemolymph of E. heros were less frequent (maximum prevalence of 8.7%), suggesting that this species is less susceptible than N. viridula and P. guildinii. Trypanosomatid prevalence was higher than that observed for entomopa... Mostrar Tudo |
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Thesagro: |
Inseto; Percevejo; Praga de Planta; Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49811/1/24975.pdf
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Marc: |
LEADER 02325naa a2200217 a 4500
001 1451530
005 2013-03-12
008 2005 bl uuuu u00u1 u #d
100 1 $aSOSA-GÓMEZ, D. R.
245 $aTrypanosomatid prevalence in Nezara viridula (L.), Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood) (Heteroptera$bPentatomidae) populations in Northern Paraná, Brazil.$h[electronic resource]
260 $c2005
520 $aThe stink bug complex in soybeans has a great potential to cause damage, their control has been difficult due to high population densities at the end of the season. Studies related to entomopathogenic organisms in stink bugs are interesting for their possibilities to be used as biological control agents and because they could be an etiological agent in mass rearing. We determined the prevalence of trypanosomatids in the most important species of the stink bugs complex in soybean, from Brazil, Nezara viridula (L.) Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood). Insects were collected in soybean and on alternate hosts during the intercrop season. Hemolymph drops fromeach adult were mounted on slides and observed under microscope: stink bug numbers with and without flagellates were recorded. The flagellates found in P. guildinii or E. heros populations were smaller than that found in N. viridula. The higher prevalence of the trypanosomatids was observed on soybean reaching a peak of 30% of the sampled N. viridula specimens in January, 2001, and 44% prevalence in February, 2003. The maximum prevalences (16%) in P. guildinii were observed in January and February, 2003 and on July 27, 2003 with 20% of the specimens infected. Flagellates in the hemolymph of E. heros were less frequent (maximum prevalence of 8.7%), suggesting that this species is less susceptible than N. viridula and P. guildinii. Trypanosomatid prevalence was higher than that observed for entomopathogenic fungi, however they seem to be inefficient control agents in short term condition.
650 $aInseto
650 $aPercevejo
650 $aPraga de Planta
650 $aSoja
700 1 $aBORGES, E.
700 1 $aVIEIRA, I. H. T. L.
700 1 $aCOSTA, F.
700 1 $aOLIVEIRA, C. N.
773 $tNeotropical Entomology, Piracicaba$gv. 34, n. 2, p. 341-347, Mar./Apr. 2005.
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Embrapa Soja (CNPSO) |
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