Plant Disease Vector
Mostrando 13-24 de 39 artigos, teses e dissertações.
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13. Epidemiologia comparativa entre Candidatus Liberibacter asiaticuse Candidatus Liberibacter americanusem ambiente controlado / Comparative epidemiology between Candidatus Liberibacter asiaticus and Candidatus Liberibacter americanus under controlled environment
Huanglongbing é a mais destrutiva doença da citricultura mundial. Seu recente relato no Brasil, em 2004, e a detecção de duas espécies bacterianas associadas à doença -Candidatus Liberibacter asiaticus e Candidatus Liberibacter americanus resultaram em poucos estudos do comportamento do Huanglongbing nas condições dos pomares brasileiros. Os objetiv
Publicado em: 2010
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14. Detecção do vírus da leprose dos citros nos tecidos da planta infectada e do ácaro vetor Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae) / Detection of Citrus leprosis virus C (CiLV-C) in the tissues of infected plants and of mite vector Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae)
Citrus leprosis is one of the most important diseases in the Brazilian citrus production due to the wide occurrence in orchards and also to the high costs involved in the chemical control of the mite vector. The disease affects the plant production and longevity and it is characterized by localized chlorotic and/or necrotic spots on the leaves, stems and fru
Publicado em: 2009
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15. Construção de cDNA infeccioso de Citrus Sudden death-associated virus
The orange is an important fruit, widely spread around the world and very well suited to the climate in Brazil. However, citriculture has suffered a lot with a new disease, called Morte Súbita dos Citros (MSC) (Citros Sudden Death Disease) that has been recognized the first time in 2001 in Minas Gerais State, Brazil. The disease cause severe damages to plan
Publicado em: 2009
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16. Caracterização molecular e avaliação da resistência ao vírus da tristeza dos citros (CTV) em plantas transgênicas de laranja Valência(Citrus sinensis L. Osbeck) / Molecular characterization and resistance evaluation to citrus tristeza virus (CTV) in transgenic plants of Valência orange (Citrus sinensis L. Osbeck)
In Brazil, citrus is one of the most important cultures. The productivity of this culture in the country is still considered low and this fact is due to several pests and diseases that affect the crop. Among the diseases there is the tristeza, caused by Citrus tristeza virus (CTV). This pathogen can also be related with another important disease, the citrus
Publicado em: 2009
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17. LEISHMANIOSE TEGUMENTAR AMERICANA: uma abordagem farmacológica
The leishmaniasis (ACL) is a zoonotic disease whose etiologic agent, species of the genus Leishmania. And a disease of the skin and mucous membranes, primarily zoonotic involving a variety of wild and domestic mammals. Outbreaks of leishmaniasis occur by environmental changes due to deforestation, construction of dams, roads, mines, plant work areas, militar
Publicado em: 2009
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18. Bases ecológicas para o manejo de Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) em sistemas orgânicos de produção de tomate
The whitefly Bemisia tabaci biotype B stands out, among the diverse community of pest herbivores that colonize the tomato crop, due to the direct damages and transmission of several pathogenic viruses (Geminiviridae) causing productivity losses. The spraying of insecticides for its control selects resistant populations and promotes the dispersion of adults t
Publicado em: 2009
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19. Molecular identification of phytoplasmas associated to cabbage stunt and epidemiological analysis of disease / Identificação molecular de fitoplasmas associados ao enfezamento do repolho e análise epidemiológica da doença
A disease called stunt, of unknown etiology, has occurred in cabbage crops located in the green belt region of the São Paulo State (Brazil). The disease has caused serious yield losses in the last years. The symptomatology exhibited by the affected plants has been characterized by foliar chlorosis, intense red coloration of leafs, general stunt, shoot proli
Publicado em: 2007
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20. Ciclo biológico do Rhodnius milesi (Hemiptera: Reduviidae) e a atividade de extratos de plantas
Chagas disease is transmitted to humans through feces of hemoptrous insects, subfamily Triatominae, contaminated during blood feeding. The increase in Triatominae populations resistant to available insecticides, and the appearance of new potential vector species, such as Rhodnius milesi in the Amazon region, are two pressing concerns. Given the uncharted che
Publicado em: 2007
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21. Behavior of the ringspot virus disease in coffee plants and its influence in the quality of coffee drink / Comportamento da Mancha Anular do cafeeiro no campo e sua influÃncia na qualidade da bebida
In this work the development of ringspot virus disease was evaluated in coffee plants in the same coffee crop, from 2003 to 2005 in Lavras, Minas Gerais State -Brazil. It was also elaborated a diagramatical scale for measuring the severity of virus disease and determining its influence in the quality of coffee drink, and the effect of miticides in the contro
Publicado em: 2007
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22. Caracterização de uma aldo-ceto redutase relacionada a patogenicidade de Xylella fastidiosa / Characterization of a pathogenicity related Aldo-keto reductase from Xylella fastidiosa
The Xylella fastidiosa genome program generated a large number of gene sequences that belong to pathogenicity, virulence and adaptation categories from this important plant pathogen. One of these genes (XF 1729) was described in the genome annotation as being a phenylacetaldehyde dehydrogenase. However, the XF 1729 primary sequence analysis showed similariti
Publicado em: 2007
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23. AVALIAÇÃO DE VETORES DA DOENÇA DE CHAGAS NA ÁREA DE INFLUÊNCIA DIRETA DA USINA HIDRELÉTRICA CORUMBÁ IV, GOIÁS
The objective of this study was to evaluate the diversity of found vectors as well as their habitat preference and apatial distribution in a region around Brasília within the area of direct influence of the reservoir of the Corumbá IV hydroelectric power plant (UEH Corumbá IV) comparing the data with the history of occurrence and prevalence of the Chagas
Publicado em: 2006
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24. Mixtures of acaricides in the management of Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) resistance to hexythiazox / Mistura de acaricidas no manejo da resistência de Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) a hexythiazox
A mistura de hexythiazox com acaricidas de ação adulticida tem sido explorada no controle de Brevipalpus phoenicis (Geijskes, 1939) em pomares de citros. Sendo assim, o presente trabalho foi realizado com o objetivo de subsidiar a recomendação de mistura de acaricidas no manejo da resistência de B. phoenicis a hexythiazox. Para esse propósito, foram re
Publicado em: 2006