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A gravity model approach to forecasting tuberculosis transmission in cattle AgEcon
Xie, Fang; Horan, Richard D.; Wolf, Christopher A..
Bovine tuberculosis (bTB) in cattle has caused significant economic losses to livestock producers and has proven difficult to eradicate. It is suspected that cattle movement across different farms and regions is one of the key factors of bTB transmission in the United States. Prior attempts to model the epidemiology of bTB infection within cattle to predict disease transmission have not adequately captured the behavioral aspects of trade. A better understanding of livestock trade patterns would help in predicting disease transmission and the associated economic effects. In this paper, we develop a gravity model of livestock trade and link it to an epidemiological model of bTB transmission, with the goal being that this information could lead to improved...
Tipo: Conference Paper or Presentation Palavras-chave: Bovine tuberculosis; Gravity model; Disease management; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/49382
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Avaliação de linhagens de Trichoderma na promoção de crescimento de raízes de tomateiro e no controle de Meloidogyne enterolobii. Repositório Alice
ALMEIDA, S. F. de.
O nematoide das galhas Meloidogyne enterolobii é um patógeno emergente no Brasil e considerado altamente destrutivo ao tomateiro. Devido à falta de cultivares resistentes a esse nematoide e à ecassez de resultados de pesquisa envolvendo Trichoderma no controle desse patógeno, o objetivo deste trabalho foi avaliar linhagens de Trichoderma quanto à promoção de crescimento de raízes de tomateiro e redução de populações de M. enterolobii. A aplicação de CEN288, CEN289, CEN290, CEN316, CEN1153, CEN1399 e SF 04 (monospórico e formulado) e ESALQ 1306 (monospórico e formulado) à concentração de 1,43x106 conídios/ml aumentou significamente o peso fresco de raízes em comparação com a testemunha inoculada com nematoides. Essas linhagens de Trichoderma, exceto CEN316,...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Manejo de doenças; Solanum lycopersicum L; Disease management; Controle Biológico; Biological control.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125226
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Avaliação in vitro da ação da quitosana e de seu derivado quaternizado na inibição do crescimento do fungo Penicillium expansum. Repositório Alice
MENDES, L. D.; MELO, J. D. B.; ASSIS, O. B. G. de; BRITTO, D. de.
Quitosana comercial de média massa molar (400.000 gmol-1) e seu derivado quaternizado hidrossolúvel N,N,N-trimetilquitosana foram avaliados em condições laboratoriais, em análises in vitro, como agentes inibidores do crescimento de Penicillium expansum. Formulações nas concentrações de 0,1; 1,0; 5,0 e 10,0 gL-1de cada polímero foram preparadas e adicionados em meio de cultura BDA sólido e aquoso. O fungofoi isolado de frutas contaminadas, cultivado e inoculadonos meios contendo os polímeros. Análises conduzidas por medida do crescimento de colônias em meio sólido e por contagem de esporos germinados em meio liquido (em câmara de Neubauer) indicaram eficiência na redução da infestação por ambos os polímeros, porém em condições distintas. A quitosana...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Penicillium expansum; Quitosana; Antifúngico natural; Bolor azul; Biopolímeros; Fungo; Doença; Fruta; Pós-colheita; Fruit; Natural antifungal; Disease management.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1061863
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Barriers to the provision of asthma services and perceived practice towards asthma management among urban community pharmacists in Selangor, Malaysia BJPS
Akram,Waqas; Ijaz,Naeem; Ahmad,Hassan; Jamshaid,Muhammad; Ismail,Nahlah Elkudssiah.
This study aims to assess the perceived practice and barriers towards the provision of asthma management services among urban community pharmacists in Selangor, Malaysia. The study also highlights both pharmacist and patient-related barriers in asthma counseling. One hundred fifty urban community pharmacists in Selangor, Malaysia, were randomly selected and recruited for the present cross sectional baseline study. Previous studies have explored pharmacists’ perception on their roles in asthma management in different parts of the world. The data was collected through self-explanatory questionnaires (containing 47 items). The extracted data from the completed questionnaires were analyzed descriptively and inferentially using Statistical Package for Social...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asthma; Perceived practive; Treatment barriers; Community pharmacists; Disease management.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000400614
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Canker and decline diseases caused by soil- and airborne Phytophthora species in forests and woodlands Naturalis
Jung, T.; Pérez-Sierra, A.; Durán, A.; Horta Jung, M.; Balci, Y.; Scanu, B..
Most members of the oomycete genus Phytophthora are primary plant pathogens. Both soil- and airborne Phytophthora species are able to survive adverse environmental conditions with enduring resting structures, mainly sexual oospores, vegetative chlamydospores and hyphal aggregations. Soilborne Phytophthora species infect fine roots and the bark of suberized roots and the collar region with motile biflagellate zoospores released from sporangia during wet soil conditions. Airborne Phytophthora species infect leaves, shoots, fruits and bark of branches and stems with caducous sporangia produced during humid conditions on infected plant tissues and dispersed by rain and wind splash. During the past six decades, the number of previously unknown Phytophthora...
Tipo: Article / Letter to the editor Palavras-chave: Disease management; Epidemic; Forest dieback; Invasive pathogens; Nursery infestation; Root rot.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/649734
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Doenças da mangueira. Repositório Alice
BATISTA, D. da C.; RIBEIRO JUNIOR, P. M.; BARBOSA, M. A. G.; ANDRADE, J. N. de; TERAO, D..
A mangueira é uma das principiais fruteiras tropicais cultivadas em todo mundo. O Brasil é um dos maiores produtores mundiais dessa fruta e esta entre os maiores exportadores. Grande parte da manga produzida no país tem como destino o mercado europeu e o norte americano. Todavia, a exportação da fruta exige um controle de qualidade física, química e biológica, pelos compromissos firmados com os importadores quanto ás exigências de normas de boas práticas agrícolas (BPA). A ocorrência de problemas fitossanitários, a exemplo de doenças, é um dos principais entraves relacionados com a produção e a comercialização da fruta, uma vez que tanto a planta quanto a fruta podem ser afetadas por diferentes patógenos. As doenças que incidem no pomar na fase de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Manjo de doença; Disease management; Mango; Manga; Fungo; Bacteria; Mangifera Indica; Fungi.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1056834
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Doenças da videira. Repositório Alice
BARBOSA, M. A. G.; FREITAS, D. M. S.; RIBEIRO JUNIOR, P. M.; BATISTA, D. da C..
A videira encontra-se amplamente distribuída em todo mundo. No Brasil é cultivada principalmente na Região Sul e nas últimas décadas, no Submédio do Vale do São Francisco, onde grande parte da produção é destinada ao mercado internacional. Diversos fatores podem afetar a produtividade da videira, visto que esta cultura é bastante exigente quanto aso manejo de doenças. As principais doenças da videira causadas por fungos são míldio, oídio, ferrugem, declínio, antracnose e requeima. No Brasil, atualmente, existe apenas uma doença bacteriana de importância econômica para esta cultura que é cancro-bacteriano da videira e encontra-se com ocorrência limitada a alguns estados do Nordeste, Roraima e na região norte. As viroses também acarretam importantes...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Videira; Vitis spp; Manejo da doença; Disease management; Grape; Plant disease; Uva; Doença.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1056826
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Epidemiology of apple leaf spot Trop. Plant Pathol.
CRUSIUS,LUCIANO U.; FORCELINI,CARLOS A.; SANHUEZA,ROSA M.V.; FERNANDES,JOSÉ M.C..
Apple leaf spot (ALS) caused by Colletotrichum spp. is a major disease of apple (Malus domestica) in Southern Brazil. The epidemiology of this disease was studied in experiments carried out in the counties of Passo Fundo and Vacaria, State of Rio Grande do Sul, from February 1998 to October 2000. The disease was found in all the six apple orchards sampled in the growing seasons of 1997/98 and 1998/99. The fungus isolates associated with ALS fit the characteristics of C. gloeosporioides (75%), C. acutatum (8%), and Colletotrichum sp. (17%). The pathogen overwintered in dormant buds and twigs but not in dropped leaves or fruit mummies. Two sprays of copper oxychloride (at 0.3%) reduced the fungus initial inoculum by 65-84.6% in buds and 85.6-93.7% in twigs,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Colletotrichum; Disease forecast; Disease management.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000100010
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Infectious diseases in oyster aquaculture require a new integrated approach ArchiMer
Pernet, Fabrice; Lupo, Coralie; Bacher, Cedric; Whittington, Richard J..
Emerging diseases pose a recurrent threat to bivalve aquaculture. Recently, massive mortality events in the Pacific oyster Crassostrea gigas associated with the detection of a microvariant of the ostreid herpesvirus 1 (OsHV-1 µVar) have been reported in Europe, Australia and New Zealand. Although the spread of disease is often viewed as a governance failure, we suggest that the development of protective measures for bivalve farming is presently held back by the lack of key scientific knowledge. In this paper, we explore the case for an integrated approach to study the management of bivalve disease, using OsHV-1 as a case study. Reconsidering the key issues by incorporating multidisciplinary science could provide a holistic under-standing of OsHV-1 and...
Tipo: Text Palavras-chave: Bivalve; Disease management; Epidemiology; Multidisciplinary; Risk.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00314/42537/41912.pdf
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Mating type, mefenoxam sensitivity, and pathotype diversity in Phytophthora infestans isolates from tomato in Brazil. Repositório Alice
MIRANDA, B. E. C. de; SUASSUNA, N. D.; REIS, A..
Abstract - The objective of this work was to characterize 79 Phytophthora infestans isolates collected in tomato (Solanum lycopersicum) fields, as to mating type, mefenoxam sensitivity, and pathotype composition. The isolates were sampled in 2006 and 2007 in seven Brazilian states as well as in the Distrito Federal. They were characterised as to mating type (n=79), sensitivity to fungicide mefenoxam (n=79), and virulence to three major resistance genes Ph-1, Ph-2, and Ph-3/Ph-4 (n=62). All isolates were of the mating type A1. Resistant isolates were detected in all sampled states, and its average frequency was superior to 50%. No difference was detected in pathotype diversity, neither between subpopulations collected in 2006 and 2007 nor between isolates...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Late blight; Pathogen variability; Lycopersicon esculentum; Solanum lycopersicum; Disease management; Fungicide resistance.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/864123
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Mating type, mefenoxam sensitivity, and pathotype diversity in Phytophthora infestans isolates from tomato in Brazil PAB
Miranda,Bruno Eduardo Cardozo de; Suassuna,Nelson Dias; Reis,Ailton.
The objective of this work was to characterize 79 Phytophthora infestans isolates collected in tomato (Solanum lycopersicum) fields, as to mating type, mefenoxam sensitivity, and pathotype composition. The isolates were sampled in 2006 and 2007 in seven Brazilian states as well as in the Distrito Federal. They were characterised as to mating type (n=79), sensitivity to fungicide mefenoxam (n=79), and virulence to three major resistance genes Ph-1, Ph-2, and Ph-3/Ph-4 (n=62). All isolates were of the mating type A1. Resistant isolates were detected in all sampled states, and its average frequency was superior to 50%. No difference was detected in pathotype diversity, neither between subpopulations collected in 2006 and 2007 nor between isolates grouped as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lycopersicon esculentum; Solanum lycopersicum; Disease management; Fungicide resistance; Late blight; Pathogen variability.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000700006
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Mechanisms and significance of fungicide resistance BJM
Deising,Holger B.; Reimann,Sven; Pascholati,Sérgio F..
In this review article, we show that occurrence of fungicide resistance is one of the most important issues in modern agriculture. Fungicide resistance may be due to mutations of genes encoding fungicide targets (qualitative fungicide resistance) or to different mechanisms that are induced by sub-lethal fungicide stress. These mechanisms result in different and varying levels of resistance (quantitative fungicide resistance). We discuss whether or not extensive use of fungicides in agricultural environments is related to the occurrence of fungicide resistance in clinical environments. Furthermore, we provide recommendations of how development of fungicide resistant pathogen populations may be prevented or delayed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus black spot disease; Disease management; Fungicide resistance; Efflux transporters; Wheat tan spot disease.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200017
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Plant Disease Management in the Era of Energy Conservation Taiwan Agricultural Research Institute
Hung-Chang Huang; Min-Tze Wu; 黃鴻章; 吳明哲.
[[abstract]]In the 21st century, the term of “agricultural sustainability” has become a norm for modern agriculture as we are facing several long-term crises such asenergy shortage, global warming and environmental pollutions. As environmental and ecological issues continue to impact on agriculture, all technologies developed for crop production must be economically feasible, ecologically sound, environmentally safe and socially acceptable. Numerous non-chemical methods for control of crop diseases such as pathogen-free seeds, disease resistance, crop rotation, plant extracts, organic wastes and biological control are considered less harmful than synthetic chemical pesticides and, therefore, offer great potential for application in conventional...
Palavras-chave: Disease management; Sustainable Agriculture; Non-chemical control Proceedings of Symposium on Plant Disease Management in the Era of Energy-Saving and Carbon Reduction 病害管理; 永續農業; 非農藥防治 節能減碳與作物病害管理研討會專刊 [[classification]]10.
Ano: 2008
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