Mite Vector Of Plant Disease
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Present status of citrus leprosis in Argentina and Paraguay
Citrus leprosis (CL) was first described in South America in the 1920's. It is considered similar to a disease first observed back to 1860 in Florida. It is a destructive disease characterized by localized lesions on the leaves, fruits and stems, which may lead to the death of the affected plant if left untreated. Around 1940, CL was demonstrated to be trans
Trop. plant pathol.. Publicado em: 26/07/2013
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2. Resposta de genótipos de citros à leprose e variabilidade genética da ORF p29 do vírus da leprose dos citros C (CiLV-C) / Response of citrus genotypes to leprosis and genetic variability of ORF p29 from Citrus leprosis virus C (CiLV-C)
Viruses have, potentially, broad genetic variability because of their need to adapt to several changes that they are exposed to. Therefore, genetic variability is essential for their survival; it is the first step to adapt to a new host, to break resistance down, to change symptoms and virulence, which justifies the interest in studies in this area. These st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/05/2012
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3. In vitro expression and antiserum production against the movement protein of Citrus leprosis virus C (CiLV-C)
Citrus leprosis, caused by Citrus leprosis virus C (CiLV-C), is currently considered the most important viral disease in the Brazilian citrus industry due to the high costs required for the chemical control of its vector, the mite Brevipalpus phoenicis. The pathogen induces a non-systemic infection and the disease is characterized by the appearance of locali
Tropical Plant Pathology. Publicado em: 2012-04
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4. 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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5. 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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6. 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
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7. Resistance dynamics of Brevipalpus phoenicis (geijskes, 1939) (acari: tenuipalpidae) to the acaricide dicofol. / Dinâmica da resistência de Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) ao acaricida dicofol.
O conhecimento da dinâmica da resistência de pragas a pesticidas é de fundamental importância para a implementação de estratégias de manejo da resistência. Desta forma, o principal objetivo do presente trabalho foi estudar a dinâmica da resistência de Brevipalpus phoenicis (Geijskes, 1939) ao acaricida dicofol em pomares comerciais de citros durant
Publicado em: 2004
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8. Detecção e caracterização da resistência de Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) ao acaricida propargite. / Detection and characterization of Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) resistance to the acaricide propargite.
The citrus flat mite Brevipalpus phoenicis (Geijskes) is one of the most important citrus pests because it vectors the citrus leprosis virus. The acaricide propargite has been frequently used to control this mite. Therefore, the objective of this work was to collect basic information for implementing a resistance management program of B. phoenicis to proparg
Publicado em: 2003
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9. Biofertilizer action in the Brevipalpus phoenicis bioecology. / Ação de biofertilizantes líquidos sobre a bioecologia do ácaro Brevipalpus phoenicis.
This study was conducted to evaluate interactions between host plants and the effect of biofertilizers on Brevipalpits phoeiiicis (Geijskes) bioecology. The residual and systemic effects of biofertilizer mjxtures sprayed on Canavalia ensiformis (L.) DC. plants on the bioecology parameters were firstly evaluated. For the residual effect bioassay the following
Publicado em: 2002
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10. Selection of entomopathogenic fungi and infeccion of Hirsutella sp. on Brevipalpus phoenicis (Geijskes, 1939). / Seleção de fungos entomopatogênicos e infecção de Hirsutella sp. em Brevipalpus phoenicis (Geijskes, 1939).
In this research, the patogenicity of 52 isolates of entomopathogenic fungi against Brevipalpus phoenicis and the production of four isolates of Hirsutella spp. in solid medium (M.C.) were evalueted under laboratory condition. The stages of the biological cycle of Hirsutella sp. (isolated 1269) on adults of B. phoenicis were evalueted with the use of an elec
Publicado em: 2002