Plant Epidemiology
Mostrando 1-12 de 42 artigos, teses e dissertações.
-
1. Symptomatology associated with “Purple top”, an emerging disease of solanaceous fruit species
ABSTRACT “Purple top” is an emerging disease that affects solanaceous crops, reported mainly on Solanum tuberosum (potato). Additionally, Bactericera cockerelli has been reported as the insect vector of Candidatus Liberibacter solanacearum (CaLso), a pathogen that has been associated with this disease. However, the information about this disease in Andea
Revista Ceres. Publicado em: 2022
-
2. Etiology, occurrence and epidemiology of a begomovirus disease in passionflower in the southwest of Bahia
ABSTRACT: Severe mosaic symptoms, accompanied by yellow spots, abnormally small leaves, fruit malformation and cracking, reduced plant growth, and high levels of whitefly (Bemisia tabaci MEAM1) infestation were observed in passionflower (Passiflora edulis) orchards in southwestern Bahia, Brazil. The aim of this work was to identify the species of begomovirus
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
-
3. Sandfly fauna (Diptera: Psychodidae) in an urban area, Central-West of Brazil
ABSTRACT Biological and ecological relations among vectors and their pathogens are important to understand the epidemiology of vector-borne diseases. Camapuã is an endemic area for visceral and tegumentary leishmaniasis. The aim of this study was to characterize the sandfly fauna present in Camapuã , MS, Brazil. Sand flies were collected every fortnight fr
Rev. Inst. Med. trop. S. Paulo. Publicado em: 24/08/2017
-
4. Experimental host range of Citrus leprosis virus C (CiLV-C)
Citrus leprosis (CL) is a serious threat to the citrus industry, especially for sweet oranges. For a long time, Citrus spp. were considered the only susceptible hosts. However, other plant species were also found either experimentally or naturally to be susceptible to Citrus leprosis virus C (CiLV-C). To assess the experimental host range of CiLV-C, a large
Trop. plant pathol.. Publicado em: 31/01/2014
-
5. Alternative hosts of Cowpea aphid-borne mosaic virus (CABMV) in sesame (Sesamum indicum) crops grown in Paraguay
Sesame (Sesamum indicum L.) production in Paraguay has been severely affected by infection with Cowpea aphid-borne mosaic virus (CABMV), which causes a disease known locally as ka'are. Because very little is known about the epidemiology of this disease, a survey was performed in fields surrounding affected sesame plantations to identify CABMV-infected plants
Trop. plant pathol.. Publicado em: 2013-12
-
6. Tomato severe rugose virus (ToSRV) e Tomato chlorosis virus (ToCV): relações com a Bemisia tabaci biótipo B e eficiência de um inseticida no controle da transmissão do ToSRV / Tomato severe rugose virus (ToSRV) and Tomato chlorosis virus (ToCV): relashionship with Bemisia tabaci biotype B and efficiency of an insecticide to control the transmission of ToSRV
A cultura do tomateiro (Solanum lycopersicum L.) é importante mundialmente devido ao alto consumo de seus frutos. Nos últimos anos surgiram nesta cultura no Brasil alguns vírus emergentes com altas taxas de disseminação, como begomovírus e crinivírus, transmitidos pela Bemisia tabaci biótipo B, que podem causar danos à produção do tomateiro. A esp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012
-
7. 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
-
8. Comparison of two methods for in vitro multiplication of Radopholus similis and Pratylenchus brachyurus in carrot cylinders
The use of in vitro mass multiplication of nematodes under axenic conditions allows intensification of studies on taxonomy, biology, epidemiology and control of these pathogens. In the present study, two methods were compared for in vitro multiplication of two species of plant-parasitic nematodes, Radopholus similis and Pratylenchus brachyurus in 20, 40 and
Tropical Plant Pathology. Publicado em: 2012-08
-
9. Podridão floral dos citros: dinâmicas temporal e espacial, sensibilidade de Colletotrichum acutatum a fungicidas e controle da doença / Postbloom fruit drop: temporal and spatial dynamics, sensitivity of Colletotrichum acutatum to fungicide and disease control
A Podridão Floral dos Citros (PFC), causada por Colletotrichum acutatum, foi observada em 1956/57 em Belize e relatada posteriormente em 1979. Neste mesmo ano a PFC também foi relatada no Brasil e, desde então, tem causado prejuízos todas às vezes nas quais o período de florescimento coincide com a ocorrência de chuvas. O controle da PFC é realizado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
-
10. Caracterização socio-ambiental e epidemiológica das comunidades da área diretamente afetada pela usina hidrelétrica serra do Facão-GO
A construção de uma usina hidrelétrica provoca várias mudanças no meio ambiente, as quais podem contribuir para proliferação ou migração de animais nocivos ao homem no peridomicílio que podem interferir no processo de adoecimento das pessoas. A movimentação da fauna de vertebrados silvestres (potenciais hospedeiros intermediários) e invertebrado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
-
11. Distribuicao e severidade da malformacao da mangueira do cerrado do Brasil Central.
2002
Planaltina: Embrapa Cerrados. Publicado em: 2011
-
12. Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives.
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed with emphasis on knowledge and concepts considered important for managing the disease in commercial greenhouses. Pythium root rot continually threatens the productivity of numerous kinds of crops in hydroponic systems around the world including cucumber, tomato, swee
Summa Phytopathologica. Publicado em: 2011