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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
13/09/2010 |
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Data da última atualização: |
24/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVES, L. F. A.; QUEIROZ, D. L. de; ANDRADE, D. P. |
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Afiliação: |
LUIS FRANCISCO ANGELI ALVES, Bolsista Universidade Estadual do Oeste do Paraná.; DALVA LUIZ DE QUEIROZ, CNPF; DANIEL PIACENTINI ANDRADE, Aluno Universidade Integrada Espírita. |
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Título: |
Damage characterization and control tactics to broad mite (Poluphagotarsonemus latus Banks) in Paraguay-tea plants (Ilex paraguariensis A.St.-Hil.). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Revista Brasileira de Biociências, v. 8, n. 2, p. 208-212, abr./jun. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
(Damage characterization and control tactics to broad mite (Polyphagotarsonemus latus Banks) in Paraguaytea plants (Ilex paraguariensis A.St.-Hil.)). The broad mite (Polyphagotarsonemus latus) is referred as one Paraguay-tea (Ilex paraguariensis) pest, an important culture in the south of Brazil, and not existing studies about its control in the Paraguay-tea culture, the present work aimed to characterize the damages and to evaluate control tactics of this pest of Paraguay-tea seedlings, in green house. In the experiment 1, the Paraguay-tea seedlings were divided in two groups of 50 seedlings, divided in 5 repetitions. In one of the groups the seedlings were artificially infested with mites grown in laboratory. Weekly, during 3 months, the plants were appraised, the alterations possibly related to the mites presence were observed. In the second experiment, an identical group of seedlings was infested by the broad mite and 15 days after the following treatments were applied: a) mitecide based on cyhexathin, b) Hirsutella thompsonii fungus isolated CG 541 (1×106 conídios/mL), c) distilled water and d) without infestation, considered control treatment. The evaluations accomplished were before and at the end of the experiment, consisting in counting the mites in 10 leaves/repetition, determination of the height and number of leaves/plantings and dry weight of all the plants (end). The mites concentrated on the abaxial surface of the apical and younger leaves, which presented the screw borders, abnormal ribs development, rough surface and tan. Early leaves fall was also observed. There was no difference in the size of the plants and leaves number, but a 30% biomass reduction in the fungus treatment plants and in those without treatment has happened. The broad mite caused damages to the seedlings in nurseries and the mitecide control reduced the population of the same and the damages. Menos(Damage characterization and control tactics to broad mite (Polyphagotarsonemus latus Banks) in Paraguaytea plants (Ilex paraguariensis A.St.-Hil.)). The broad mite (Polyphagotarsonemus latus) is referred as one Paraguay-tea (Ilex paraguariensis) pest, an important culture in the south of Brazil, and not existing studies about its control in the Paraguay-tea culture, the present work aimed to characterize the damages and to evaluate control tactics of this pest of Paraguay-tea seedlings, in green house. In the experiment 1, the Paraguay-tea seedlings were divided in two groups of 50 seedlings, divided in 5 repetitions. In one of the groups the seedlings were artificially infested with mites grown in laboratory. Weekly, during 3 months, the plants were appraised, the alterations possibly related to the mites presence were observed. In the second experiment, an identical group of seedlings was infested by the broad mite and 15 days after the following treatments were applied: a) mitecide based on cyhexathin, b) Hirsutella thompsonii fungus isolated CG 541 (1×106 conídios/mL), c) distilled water and d) without infestation, considered control treatment. The evaluations accomplished were before and at the end of the experiment, consisting in counting the mites in 10 leaves/repetition, determination of the height and number of leaves/plantings and dry weight of all the plants (end). The mites concentrated on the abaxial surface of the apical and younger leaves, which presented the... Mostrar Tudo |
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Palavras-Chave: |
Fungo entomopatogênico. |
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Thesagro: |
Ácaro; Controle Biológico; Controle Químico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02583naa a2200193 a 4500
001 1862192
005 2015-02-24
008 2010 bl uuuu u00u1 u #d
100 1 $aALVES, L. F. A.
245 $aDamage characterization and control tactics to broad mite (Poluphagotarsonemus latus Banks) in Paraguay-tea plants (Ilex paraguariensis A.St.-Hil.).$h[electronic resource]
260 $c2010
520 $a(Damage characterization and control tactics to broad mite (Polyphagotarsonemus latus Banks) in Paraguaytea plants (Ilex paraguariensis A.St.-Hil.)). The broad mite (Polyphagotarsonemus latus) is referred as one Paraguay-tea (Ilex paraguariensis) pest, an important culture in the south of Brazil, and not existing studies about its control in the Paraguay-tea culture, the present work aimed to characterize the damages and to evaluate control tactics of this pest of Paraguay-tea seedlings, in green house. In the experiment 1, the Paraguay-tea seedlings were divided in two groups of 50 seedlings, divided in 5 repetitions. In one of the groups the seedlings were artificially infested with mites grown in laboratory. Weekly, during 3 months, the plants were appraised, the alterations possibly related to the mites presence were observed. In the second experiment, an identical group of seedlings was infested by the broad mite and 15 days after the following treatments were applied: a) mitecide based on cyhexathin, b) Hirsutella thompsonii fungus isolated CG 541 (1×106 conídios/mL), c) distilled water and d) without infestation, considered control treatment. The evaluations accomplished were before and at the end of the experiment, consisting in counting the mites in 10 leaves/repetition, determination of the height and number of leaves/plantings and dry weight of all the plants (end). The mites concentrated on the abaxial surface of the apical and younger leaves, which presented the screw borders, abnormal ribs development, rough surface and tan. Early leaves fall was also observed. There was no difference in the size of the plants and leaves number, but a 30% biomass reduction in the fungus treatment plants and in those without treatment has happened. The broad mite caused damages to the seedlings in nurseries and the mitecide control reduced the population of the same and the damages.
650 $aÁcaro
650 $aControle Biológico
650 $aControle Químico
653 $aFungo entomopatogênico
700 1 $aQUEIROZ, D. L. de
700 1 $aANDRADE, D. P.
773 $tRevista Brasileira de Biociências$gv. 8, n. 2, p. 208-212, abr./jun. 2010.
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Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
22/03/2012 |
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Data da última atualização: |
22/03/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ELLINGSON, J. S.; WANG, Y.; LAYTON, S.; ZANELLA, J. R. C.; ROOF, M. B.; FAABERG, K. S. |
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Afiliação: |
JOSHUA S. ELLINGSON, Iowa State University; YUE WANG, University of Minnesota; SARAH LAYTON, Boerhinger Ingelheim Vetmedica; JANICE REIS CIACCI ZANELLA, CNPSA; MICHAEL B. ROOF, Boehringer Ingelheim Vetmedica; KAY S. FAABERG, University of Minnesota. |
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Título: |
Vaccine efficacy of porcine reproductive and respiratory syndrome virus chimeras. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Vaccine, v. 28, n. 14, p. 2679-2686, 2010. |
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Idioma: |
Inglês |
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Notas: |
Projeto/Plano de Ação: 03.09.00.046. |
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Conteúdo: |
The vaccine efficacy of six PRRSV Type 2 infectious clones, including five chimeras and a strain-specific deletion mutant, were examined using a respiratory challenge model in growing swine. The chimeras were constructed from different combinations of a licensed modified live vaccine (Ingelvac® PRRS MLV) and a virulent field isola e (wt MN184) which differ by 14.3% on a nucleotide basis, while the deletion mutant tested had a broad deletion in the nsp2 region of strain MN184. The appearance of antibodies and virus characterization revealed regions of the genome that could influence PRRSV replication in vivo. Swine growth, clinical signs and lung lesions were also monitored. Average daily weight gain was negatively and directly impacted by some vaccines, and after challenge, vaccination with different constructs led to variable weight gain. We determined that 3 of the tested chimeras, including two previously published chimeras [1] and one in which strain MN184 ORF5-6 was placed on the background of Ingelvac® PRRS MLV were able to prevent lung consolidation to a similar extent as traditionally prepared cell-passaged attenuated vaccines. The study suggested that only specific chimeras can attenuate clinical signs in swine and that attenuation cannot be directly linked to primary virus replication. Additionally, the strain MN184 deletion mutant was not found to have been sufficiently attenuated nor efficacious against heterologous challenge with strain JA-142. |
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Thesagro: |
Suíno; Vacina; Vírus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02126naa a2200229 a 4500
001 1919883
005 2012-03-22
008 2011 bl uuuu u00u1 u #d
100 1 $aELLINGSON, J. S.
245 $aVaccine efficacy of porcine reproductive and respiratory syndrome virus chimeras.$h[electronic resource]
260 $c2011
500 $aProjeto/Plano de Ação: 03.09.00.046.
520 $aThe vaccine efficacy of six PRRSV Type 2 infectious clones, including five chimeras and a strain-specific deletion mutant, were examined using a respiratory challenge model in growing swine. The chimeras were constructed from different combinations of a licensed modified live vaccine (Ingelvac® PRRS MLV) and a virulent field isola e (wt MN184) which differ by 14.3% on a nucleotide basis, while the deletion mutant tested had a broad deletion in the nsp2 region of strain MN184. The appearance of antibodies and virus characterization revealed regions of the genome that could influence PRRSV replication in vivo. Swine growth, clinical signs and lung lesions were also monitored. Average daily weight gain was negatively and directly impacted by some vaccines, and after challenge, vaccination with different constructs led to variable weight gain. We determined that 3 of the tested chimeras, including two previously published chimeras [1] and one in which strain MN184 ORF5-6 was placed on the background of Ingelvac® PRRS MLV were able to prevent lung consolidation to a similar extent as traditionally prepared cell-passaged attenuated vaccines. The study suggested that only specific chimeras can attenuate clinical signs in swine and that attenuation cannot be directly linked to primary virus replication. Additionally, the strain MN184 deletion mutant was not found to have been sufficiently attenuated nor efficacious against heterologous challenge with strain JA-142.
650 $aSuíno
650 $aVacina
650 $aVírus
700 1 $aWANG, Y.
700 1 $aLAYTON, S.
700 1 $aZANELLA, J. R. C.
700 1 $aROOF, M. B.
700 1 $aFAABERG, K. S.
773 $tVaccine$gv. 28, n. 14, p. 2679-2686, 2010.
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