Results 51 to 60 of about 143 (108)

First Report of Citrus leprosis virus on Citrus in Santa Cruz, Bolivia

Plant Disease, 2005
The citrus crop is rapidly expanding in the Province of Santa Cruz de la Sierra, Bolívia. Citrus, mostly planted by small growers, currently comprises approximately 15,000 ha. Sweet oranges (Citrus sinensis) and mandarins (C. reticulate) are the main citrus-types grown primarily for internal consumption.
E C, Gómez, M R, Vargas, C, Rivadameira, E C, Locali, J, Freitas-Astua, G, Astua-Monge, J C V, Rodrigues, N C, Mesa Cobo, E W, Kitajima   +8 more
openaire   +2 more sources

Pest categorisation of Nemorimyza maculosa

EFSA Journal, Volume 18, Issue 3, March 2020., 2020
Abstract The EFSA Panel on Plant Health performed a pest categorisation of Nemorimyza maculosa (Malloch) (Diptera: Agromyzidae) for the European Union (EU). N. maculosa is an oligophagous pest; cultivated hosts include Chrysanthemum, lettuce and other Asteraceae although there is little evidence of recent impacts. N.
EFSA Panel on Plant Health (PLH), Claude Bragard, Katharina Dehnen‐Schmutz, Francesco Di Serio, Paolo Gonthier, Marie‐Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Ewelina Czwienczek, Franz Streissl, Alan MacLeod   +21 more
wiley   +1 more source

Pest categorisation of Liriomyza sativae

EFSA Journal, Volume 18, Issue 3, March 2020., 2020
Abstract The EFSA Panel on Plant Health performed a pest categorisation of Liriomyza sativae (Diptera: Agromyzidae) for the EU. L. sativae (the cabbage or vegetable leaf miner; EPPO code: LIRISA) is a polyphagous pest native to the Americas which has spread to Africa, Asia and Oceania. L. sativae can have multiple overlapping generations per year. Eggs
EFSA Panel on Plant Health (PLH), Claude Bragard, Katharina Dehnen‐Schmutz, Francesco Di Serio, Paolo Gonthier, Marie‐Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Ewelina Czwienczek, Franz Streissl, Alan MacLeod   +21 more
wiley   +1 more source

Occurrence of Citrus leprosis virus in Llanos Orientales, Colombia

Plant Disease, 2006
In Colombia, citrus is cultivated in mostly small plantings that total 55,000 ha by approximately 25,000 farmers. Production includes 1,200 tons of fresh fruits and 60 tons of juice for domestic consumption, resulting in a net worth of US$650,000 per year. Most of the production comes from areas located between the Cordillera Occidental and Cordillera
G A, Leon M, C E, Realpe, P A, Garzon, J A, Rodriguez, M G, Moreno P, C C, Childers, D, Achor, J, Freitas-Astua, R, Antonioli-Luizon, R B, Salaroli, N C, Mesa C, E W, Kitajima   +11 more
openaire   +2 more sources

Circulative Transmission of Cileviruses in Brevipalpus Mites May Involve the Paracellular Movement of Virions

Frontiers in Microbiology, 2022
Plant viruses transmitted by mites of the genus Brevipalpus are members of the genera Cilevirus, family Kitaviridae, or Dichorhavirus, family Rhabdoviridae.
Aline Daniele Tassi, Aline Daniele Tassi, Pedro Luis Ramos-González, Thais Elise Sinico, Thais Elise Sinico, Elliot Watanabe Kitajima, Juliana Freitas-Astúa, Juliana Freitas-Astúa   +7 more
doaj   +1 more source

Transmission of Citrus leprosis virus C by Brevipalpus phoenicis (Geijskes) to Alternative Host Plants Found in Citrus Orchards [PDF]

Plant Disease, 2012
The equivalent of US$75 million is spent each year in Brazil to control Brevipalpus phoenicis, a mite vector of Citrus leprosis virus C (CiLV-C). In this study, we investigated the possibility that hedgerows and windbreaks normally found in citrus orchards could host CiLV-C.
Nunes, M. A., Oliveira, C. A. L. de, Oliveira, M. L. de, Kitajima, E. W., Hilf, M. E., Gottwald, T. R., Freitas-Astua, J.   +6 more
openaire   +4 more sources

Virus-like particles associated with Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae), vector of citrus leprosis virus [PDF]

Anais da Sociedade Entomológica do Brasil, 1997
Seccoes ultrafinas do acaro Brevipalpus phoenicis Geijskes, vetor da leprose dos citros, foram examinadas ao microscopio eletronico. Particulas semelhantes a virus (rhabdovirus ou badnavirus) foram observadas no corpo do vetor. As particulas sao similares as ja noticiadas em tecidos foliares de citros que apresentavam sintomas de leprose.
Rodrigues, José C. V., Nogueira, Neusa L., Freitas, Deisi S., Prates, Heloisa S.   +3 more
openaire   +2 more sources

Management of citrus leprosis using lime sulphur and their implications to soil and plant properties [PDF]

Revista Brasileira de Fruticultura, 2020
Lime sulphur is used worldwide in agriculture to control pests and diseases. Our objective was to determine the effect of lime sulphur applications in an orange orchard on soil chemical properties and foliar nutrients after seven years of use to control ...
Daniel Júnior de Andrade, Fernando César Pattaro, Mara Cristina Pessôa da Cruz, Matheus Rovere de Morais, Cirano Cruz Melville, Carlos Amadeu Leite de Oliveira   +5 more
doaj   +2 more sources

Methionine Synthase Positively Regulates Plant Defence to Both RNA and DNA Viruses and Is Useful for Developing Broad‐Spectrum Antiviral Resistance in Crops

Plant Biotechnology Journal, EarlyView.
ABSTRACT Plant viruses frequently cause severe economic losses in worldwide crop production. Developing broad‐spectrum resistance is the most efficient approach for controlling plant viral diseases. In this work, we found that the 17K protein of barley yellow dwarf viruses (BYDVs), which has multiple functions in viral pathogenesis including acting as ...
Zhaohui Wang, Kunpu Zhang, Chi Zhang, Jin Yang, Bei Li, Lina Wang, Zhenghao Shi, Rui Guo, Shuai Zhang, Kaiqi Gao, Jianing Li, Xiaohuan Jin, Xiang Ji, Huihui Bi, Liyuan You, Huaibing Jin, Daowen Wang   +16 more
wiley   +1 more source

Unravelling the involvement of cilevirus p32 protein in the viral transport

Scientific Reports, 2021
Citrus leprosis (CL) is a severe disease that affects citrus orchards mainly in Latin America. It is caused by Brevipalpus-transmitted viruses from genera Cilevirus and Dichorhavirus.
Mikhail Oliveira Leastro, Juliana Freitas-Astúa, Elliot Watanabe Kitajima, Vicente Pallás, Jesús A. Sánchez-Navarro   +4 more
doaj   +1 more source