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| Registros recuperados : 205 | |
| 65. |  | BERGAMIN FILHO, A.; AMORIM, L.; BARBOSA, F. F. L.; BERGER, R. D.; HAU, B. Epidemiologia do amarelecimento-fatal-do-dendezeiro. In: POLTRONIERI, L. S.; TRINDADE, D. R.; SANTOS, I. P. dos. (Ed.). Pragas e doenças de cultivos amazônicos. Belém, PA: Embrapa Amazônia Oriental, 2008. p. 351-357.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 66. | | TEIXEIRA, T. C. S.; BARBOSA, F. C.; LUZ, L. I.; AMORIM, L. L. Eficácia do sulfóxido albendazol e closantel no conrole da verminose em caprinos. In: CONGRESSO BRASILEIRO DE MEDICINA VETERINÁRIA, 31., 2004, São luis. A medicina veterinária no novo milênio: transformação social, preservação ambiental e segurança alimentar: resumos. São Luis, Sociedade Brasileira de Medicina Veterinária, 2004. Seção medicina veterinária preventiva e saúde pública. 1 CD-ROM.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 67. | | BARBOSA, F. C.; LUZ, I. L.; TEIXEIRA, T. C. S.; AMORIM, L. L. Eficácia do sulfóxido albendazol e closantel no controle da verminose em caprinos. Revista Brasileira de Parasitologia Veterinária, v. 13, p. 268, 2004. Suplemento 1. Resumo 241. Edição de anais do 13o. Congresso Brasileiro de Parasitologia Veterinária e o 1o. Simpósio Latino-Americano de Rickettsioses, Ouro Preto, MG, set. 2004.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 68. | | LEITE, R. M. V. B. C.; AMORIM, L.; BERGAMIN FILHO, A. Efeito de épocas de semeadura e do inóculo inicial de Alternaria helianthi em girassol. In: REUNIÃO NACIONAL DE PESQUISA DE GIRASSOL, 16.; SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 4., 2005, Londrina. Anais... Londrina: Embrapa Soja, 2005. p. 101-104. (Embrapa Soja. Documentos, 261). Organizado por Regina Maria Villas Bôas de Campos Leite, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
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| 71. | | TAVARES, S. C. C. de H.; AMORIM, L. R.; LIMA, J. A. S.; DOURADO, M. Influência de doenças em aspargo consorciado com leguminosa. Horticultura Brasileira, Brasilia, DF, v. 15, 1997. Suplemento. Edição dos Resumos do 37. Congresso Brasileiro de Olericultura, Manaus, 1997. Resumo 314.| Biblioteca(s): Embrapa Semiárido. |
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| 72. | | MARTINS, M. C.; AMORIM, L.; LOURENÇO, S. A.; GUTIERREZ, A. S. D.; WATANABE, H. S. Incidência de danos pós-colheita em goiabas no mercado atacadista de São Paulo e sua relação com a prática de ensacamento dos frutos. Revista Brasileira de Fruticultura, Jaboticabal, v. 29, n. 2, p. 245-248, ago. 2007.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 73. | | FISCHER, I. H.; MARTINS, M. C.; LOURENÇO, S. A.; KIMATI, H.; AMORIM, L. Reação de genótipos de Passiflora edulis f. flavicarpa à podridão do colo, causada por Nectria haematococca e Phytophthora parasitica. Summa Phytopathologica, Botucatu, v. 30, n. 1, p. 71, jan./mar. 2004. Edição dos Resumos do Congresso Paulista de Fitopatologia, 27., 2004, Campinas.| Biblioteca(s): Embrapa Florestas. |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
17/11/2011 |
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Data da última atualização: |
09/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SPÓSITO, M. B.; AMORIM, L.; BASSANEZI, R. B.; YAMAMOTO, P.; FELIPPE, M. R.; CZERMAINSKI, A. B. C. |
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Afiliação: |
MARCEL B. SPÓSITO, FUNDECITRUS; LILIAN AMORIM, ESALQ/USP; RENATO B. BASSANEZI, FUNDECITRUS; PEDRO YAMAMOTO, FUNDECITRUS; MARCOS R. FELIPPE, FUNDECITRUS; ANA BEATRIZ COSTA CZERMAINSKI, CNPUV. |
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Título: |
Relative importance of inoculum sources of Guignardia citricarpa on the citrus black spot epidemic in Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Crop Protection, Surrey, v. 30, n. 12, p. 1546-1552, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Guignardia citricarpa, the causal agent of citrus black spot (CBS), forms ascospores and conidia in citrus leaf litter and only conidia on fruit and twigs. The objective of this work was to determine the relative importance of inoculum sources of ascospores and conidia in the progress of CBS under natural conditions in Brazil. A first experiment was conducted in an orchard subdivided into two areas. In one area, fallen leaves were removed and in the other area fallen leaves were maintained. In each area, two treatments were established: 1) CBS symptomatic mature fruit remained on the trees after the new fruit set, and 2) CBS symptomatic mature fruit were harvested before the new fruit set. A second experiment was carried out in a CBS-free experimental orchard where detached symptomatic fruit and leaf litter on the orchard floor and detached symptomatic fruit and dead twigs on the tree canopy were distributed to investigate the spread of disease. In the first experiment disease incidence was similar for all treatments in all years. However, in 2003, in the area without leaf litter (absence of the ascospores source), disease intensity and the rate of progress of disease incidence were higher when there was overlap of mature and young fruit. In the second experiment, only detached symptomatic fruit and dead twigs on the tree canopy were able to spread CBS in two years of the experiment. The distance of disease spread was less than 80 cm from these inoculum sources. The removal of fallen leaves was not sufficient to completely suppress the disease because of the presence of conidia in fruit and dead twigs. Therefore the reduction of conidia sources should be considered in CBS management in Brazil. MenosGuignardia citricarpa, the causal agent of citrus black spot (CBS), forms ascospores and conidia in citrus leaf litter and only conidia on fruit and twigs. The objective of this work was to determine the relative importance of inoculum sources of ascospores and conidia in the progress of CBS under natural conditions in Brazil. A first experiment was conducted in an orchard subdivided into two areas. In one area, fallen leaves were removed and in the other area fallen leaves were maintained. In each area, two treatments were established: 1) CBS symptomatic mature fruit remained on the trees after the new fruit set, and 2) CBS symptomatic mature fruit were harvested before the new fruit set. A second experiment was carried out in a CBS-free experimental orchard where detached symptomatic fruit and leaf litter on the orchard floor and detached symptomatic fruit and dead twigs on the tree canopy were distributed to investigate the spread of disease. In the first experiment disease incidence was similar for all treatments in all years. However, in 2003, in the area without leaf litter (absence of the ascospores source), disease intensity and the rate of progress of disease incidence were higher when there was overlap of mature and young fruit. In the second experiment, only detached symptomatic fruit and dead twigs on the tree canopy were able to spread CBS in two years of the experiment. The distance of disease spread was less than 80 cm from these inoculum sources. The removal ... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Doença de planta; Epidemiologia; Fruta cítrica; Fruticultura; Manejo. |
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Thesaurus NAL: |
Guignardia citricarpa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/46862/1/SPOSITO-CropProtection-v30n12p1546-2011.pdf
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|
Marc: |
LEADER 02504naa a2200265 a 4500
001 1906208
005 2019-05-09
008 2011 bl uuuu u00u1 u #d
100 1 $aSPÓSITO, M. B.
245 $aRelative importance of inoculum sources of Guignardia citricarpa on the citrus black spot epidemic in Brazil.$h[electronic resource]
260 $c2011
520 $aGuignardia citricarpa, the causal agent of citrus black spot (CBS), forms ascospores and conidia in citrus leaf litter and only conidia on fruit and twigs. The objective of this work was to determine the relative importance of inoculum sources of ascospores and conidia in the progress of CBS under natural conditions in Brazil. A first experiment was conducted in an orchard subdivided into two areas. In one area, fallen leaves were removed and in the other area fallen leaves were maintained. In each area, two treatments were established: 1) CBS symptomatic mature fruit remained on the trees after the new fruit set, and 2) CBS symptomatic mature fruit were harvested before the new fruit set. A second experiment was carried out in a CBS-free experimental orchard where detached symptomatic fruit and leaf litter on the orchard floor and detached symptomatic fruit and dead twigs on the tree canopy were distributed to investigate the spread of disease. In the first experiment disease incidence was similar for all treatments in all years. However, in 2003, in the area without leaf litter (absence of the ascospores source), disease intensity and the rate of progress of disease incidence were higher when there was overlap of mature and young fruit. In the second experiment, only detached symptomatic fruit and dead twigs on the tree canopy were able to spread CBS in two years of the experiment. The distance of disease spread was less than 80 cm from these inoculum sources. The removal of fallen leaves was not sufficient to completely suppress the disease because of the presence of conidia in fruit and dead twigs. Therefore the reduction of conidia sources should be considered in CBS management in Brazil.
650 $aGuignardia citricarpa
650 $aDoença de planta
650 $aEpidemiologia
650 $aFruta cítrica
650 $aFruticultura
650 $aManejo
653 $aBrasil
700 1 $aAMORIM, L.
700 1 $aBASSANEZI, R. B.
700 1 $aYAMAMOTO, P.
700 1 $aFELIPPE, M. R.
700 1 $aCZERMAINSKI, A. B. C.
773 $tCrop Protection, Surrey$gv. 30, n. 12, p. 1546-1552, 2011.
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Embrapa Uva e Vinho (CNPUV) |
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