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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
02/01/2001 |
Data da última atualização: |
06/07/2010 |
Autoria: |
M0RALES, L.; MOSCARDI, F.; SOSA-GOMEZ, D.R. |
Título: |
Enhancement of Anticarsia gemmatalis (Lepidoptera the Mechanisms Noctuidae) baculovirus activity by optical brighteners. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000. |
Volume: |
v.2 |
Páginas: |
p.1048. |
Idioma: |
Inglês |
Conteúdo: |
The nucleopolyhedrovirus of the velvetbean caterpillar Anticarsia gemmatalis (AgMNPV) has been used as a microbial pesticide in Brazil since the 1980/81 and in the 1998/99 season more than 1.0 million ha have been treated with the pathogen. Some intrinsic characteristics of nucleopolyhedrovirus such a slow action in killing the hosts limit farmers acceptance of the virus as well as the expansion of their use as microbial insecticides. In addition, Brazilian populations of A. gemmatalis submitted to selective pressure under laboratory conditions, developed high resistance to the virus denoting possibility for resistance when used extensively in the field. Among the strategies to reduce time to kill the hosts or to counteract resistance, mixing substances that enhance viral activity seems to be a viable one. Optical brighteners (=fluorescent brighteners) used in papers, laundry detergents, plastics, and coating industries, demonstrated to protect nucleopolyhedrovirus against ultraviolet light and also, affected larval mortality rates. Four optical brighteners were evaluated in combination with A. gemmatalis nucleopolyhedrovirus in both, susceptible and resistant insects. The brighteners Tinopal UNPA-GX, Tinopal DMS, Leukophor DUB, and BRY 10 D2 100 were used at a 0.5% concentrations and added to the AgMNPV in concentrations ranging from 10 to 1x10 9 occlusion bodies (OBs)/ml. The most effective brightener (Tinopal UNPA-GX)reduced the LC 50 from 7083.0 OBs/ml to 77.8 OBs/ml (ca.90-fold) in susceptible insects and from 3.7x10 7 OBs/ml to 6x10 2 OBs/ml (ca. 62,000-fold) in resistant insects. The mean time to mortality was reduced ca. 30% with AgMNPV/Tinopal UNPA-GX group. The four brighteners all belonging to the stilbene group, significantly enhanced the A. gemmatalis larvae mortality by AgMNPV - in resistant A. gemmatalis larvae, optical brighteners were more effective than in susceptible ones-, reduced the mean time of mortality and none showed negative effects against A. gemmatalis larvae, when used alone. These results indicate that brighteners may be useful substances to be included in formulations of the AgMNPV, either to increase activity and speed of kill ofthis biological insecticide or to counteract cases of resistance of A. gemmatalis to the AgMNPV that eventually may developin field population of this insect. MenosThe nucleopolyhedrovirus of the velvetbean caterpillar Anticarsia gemmatalis (AgMNPV) has been used as a microbial pesticide in Brazil since the 1980/81 and in the 1998/99 season more than 1.0 million ha have been treated with the pathogen. Some intrinsic characteristics of nucleopolyhedrovirus such a slow action in killing the hosts limit farmers acceptance of the virus as well as the expansion of their use as microbial insecticides. In addition, Brazilian populations of A. gemmatalis submitted to selective pressure under laboratory conditions, developed high resistance to the virus denoting possibility for resistance when used extensively in the field. Among the strategies to reduce time to kill the hosts or to counteract resistance, mixing substances that enhance viral activity seems to be a viable one. Optical brighteners (=fluorescent brighteners) used in papers, laundry detergents, plastics, and coating industries, demonstrated to protect nucleopolyhedrovirus against ultraviolet light and also, affected larval mortality rates. Four optical brighteners were evaluated in combination with A. gemmatalis nucleopolyhedrovirus in both, susceptible and resistant insects. The brighteners Tinopal UNPA-GX, Tinopal DMS, Leukophor DUB, and BRY 10 D2 100 were used at a 0.5% concentrations and added to the AgMNPV in concentrations ranging from 10 to 1x10 9 occlusion bodies (OBs)/ml. The most effective brightener (Tinopal UNPA-GX)reduced the LC 50 from 7083.0 OBs/ml to 77.8 OBs/ml (ca... Mostrar Tudo |
Palavras-Chave: |
Branqueador fluorescente; Entomopathogenic virus; Fluorescent brightener; Inseticida biologico; Microbial control; Pesticida microbiano; Velvetbean caterpillar; Virus entomopatogenico. |
Thesagro: |
Anticarsia Gemmatalis; Controle Biológico; Controle Microbiano; Lagarta. |
Thesaurus Nal: |
biological control. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03395naa a2200325 a 4500 001 1462619 005 2010-07-06 008 2000 bl uuuu u00u1 u #d 100 1 $aM0RALES, L. 245 $aEnhancement of Anticarsia gemmatalis (Lepidoptera the Mechanisms Noctuidae) baculovirus activity by optical brighteners. 260 $c2000 300 $ap.1048. v.2 490 $vv.2 520 $aThe nucleopolyhedrovirus of the velvetbean caterpillar Anticarsia gemmatalis (AgMNPV) has been used as a microbial pesticide in Brazil since the 1980/81 and in the 1998/99 season more than 1.0 million ha have been treated with the pathogen. Some intrinsic characteristics of nucleopolyhedrovirus such a slow action in killing the hosts limit farmers acceptance of the virus as well as the expansion of their use as microbial insecticides. In addition, Brazilian populations of A. gemmatalis submitted to selective pressure under laboratory conditions, developed high resistance to the virus denoting possibility for resistance when used extensively in the field. Among the strategies to reduce time to kill the hosts or to counteract resistance, mixing substances that enhance viral activity seems to be a viable one. Optical brighteners (=fluorescent brighteners) used in papers, laundry detergents, plastics, and coating industries, demonstrated to protect nucleopolyhedrovirus against ultraviolet light and also, affected larval mortality rates. Four optical brighteners were evaluated in combination with A. gemmatalis nucleopolyhedrovirus in both, susceptible and resistant insects. The brighteners Tinopal UNPA-GX, Tinopal DMS, Leukophor DUB, and BRY 10 D2 100 were used at a 0.5% concentrations and added to the AgMNPV in concentrations ranging from 10 to 1x10 9 occlusion bodies (OBs)/ml. The most effective brightener (Tinopal UNPA-GX)reduced the LC 50 from 7083.0 OBs/ml to 77.8 OBs/ml (ca.90-fold) in susceptible insects and from 3.7x10 7 OBs/ml to 6x10 2 OBs/ml (ca. 62,000-fold) in resistant insects. The mean time to mortality was reduced ca. 30% with AgMNPV/Tinopal UNPA-GX group. The four brighteners all belonging to the stilbene group, significantly enhanced the A. gemmatalis larvae mortality by AgMNPV - in resistant A. gemmatalis larvae, optical brighteners were more effective than in susceptible ones-, reduced the mean time of mortality and none showed negative effects against A. gemmatalis larvae, when used alone. These results indicate that brighteners may be useful substances to be included in formulations of the AgMNPV, either to increase activity and speed of kill ofthis biological insecticide or to counteract cases of resistance of A. gemmatalis to the AgMNPV that eventually may developin field population of this insect. 650 $abiological control 650 $aAnticarsia Gemmatalis 650 $aControle Biológico 650 $aControle Microbiano 650 $aLagarta 653 $aBranqueador fluorescente 653 $aEntomopathogenic virus 653 $aFluorescent brightener 653 $aInseticida biologico 653 $aMicrobial control 653 $aPesticida microbiano 653 $aVelvetbean caterpillar 653 $aVirus entomopatogenico 700 1 $aMOSCARDI, F. 700 1 $aSOSA-GOMEZ, D.R. 773 $tIn: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registros recuperados : 553 | |
164. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SOSA-GOMEZ, D.R.; HUMBER, R. A.; MOSCARDI, F. Entomopathogens associated with soybean/wheat production systems in Brazil and Argentina. In: INTERNATIONAL COLLOQUIUM ON INVERTEBRATE PATHOLOGY AND MICROBIAL CONTROL, 8.; INTERNATIONAL CONFERENCE ON BACILLUS THURINGIENSIS 6.; ANNUAL MEETING OF THE SIP, 35., 2002, Foz do Iguassu. Program and abstracts. Londrina: Embrapa Soja: Embrapa Recursos Genéticos e Biotecnologia: UEL: SIP, 2002. p. 75. (Embrapa Soja. Documentos, 183; Embrapa Recursos Genéticos e Biotecnologia, 73).Biblioteca(s): Embrapa Soja. |
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166. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SÓSA-GOMEZ, D. R.; HUSCH, P. E.; SPECHT, A. Manejo de pragas. In: SILVA, F.; BORÉM, A. SEDIYAMA, T.; CÂMARA, G. (Org.). Soja. 2. ed. São Paulo: Oficina de textos, 2022. cap. 12, p. 211-232.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Cerrados; Embrapa Soja. |
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169. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SOSA-GOMEZ, D.R.; DELPIN, K. E.; COSTA, F. Intraspecific variation of the velvetbean caterpillar, Anticarsia gemmatalis Hubner, geographical populations. In: CONGRESSO BRASILEIRO DE SOJA, 2.; MERCOSOJA 2002, 2002, Foz do Iguaçu. Perspectivas do agronegócio da soja: resumos. Londrina: Embrapa Soja, 2002. p. 277. (Embrapa Soja. Documentos, 181). Organizado por Odilon Ferreira Saraiva, Clara Beatriz Hoffmann-Campo.Biblioteca(s): Embrapa Soja. |
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172. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SOSA-GOMEZ, D.R.; CORSO, I. C.; MORALES, L. Insecticide resistance to endosulfan, monocrotophos and metamidophos in the neotropical brown stink bug, Euschistus heros. (F.). Neotropical Entomology, Londrina, v. 30, n. 2, p. 317-320, June 2001.Biblioteca(s): Embrapa Soja. |
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175. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | GOUVEA, L.; QUERINO, R.; SOSA-GÓMEZ, D.R. Incidência natural de Trichogramma pretiosum em ovos de Anticarsia gemmatalis coletados na soja. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p. 152, trab. 266. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de CastroBiblioteca(s): Embrapa Soja. |
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179. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | HUSCH, P. E.; FERREIRA, D. G.; SOSA-GOMEZ, D. R. Estrutura genética de populações do percevejo-marrom Euschistus heros (F.) (Heteroptera: Pentatomidae) no Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 26.; CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 9., Maceio, 2016. Anais... Brasília, DF: Embrapa, 2016. p. 58. Editores técnicos: Elio Cesar Guzzo, Marcus Vinicius Sampaio, Jader Braga Maia, Aldomário Santo Negrisoli Junior.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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