Results 21 to 30 of about 179 (146)

Screening coffee genotypes for Cercospora coffeicola resistance in Brazil [PDF]

, 2021
Abstract Several efforts have been made by many researchers worldwide to develop coffee plants resistant to different Cercospora species; however, studies concerning C. coffeicola , specifically, are still incipient.
Juliana Barros Ramos, Mario Lucio Vilela de Resende, Deila Magna dos Santos Botelho, Renata Cristina Martins Pereira, Tharyn Reichel, André Augusto Ferreira Balieiro, Gustavo Pucci Botega, Juliana Costa de Rezende Abrahão   +7 more
openaire   +1 more source

Cultural and Aggressiveness Variability of Cercospora coffeicola [PDF]

Journal of Phytopathology, 2012
AbstractAlthough brown eye spot of coffee, caused by Cerco‐spora coffeicola, is important for coffee production in Brazil, there is a general lack of knowledge regarding the disease. In this study, we evaluated the variability of both the cultural and aggressiveness traits of 60 isolates from coffee plants grown under conventional and organic systems ...
André G. C. Souza, Luiz A. Maffia, Eduardo S. G. Mizubuti   +2 more
openaire   +1 more source

PHIALOMYCES MACROSPORUS REDUCES CERCOSPORA COFFEICOLA SURVIVAL ON SYMPTOMATIC COFFEE LEAVES [PDF]

Coffee Science, 2019
<p>Saprobe fungi and necrotrophic pathogens share the same niche within crop stubble and the search for fungi non-pathogenic to plants that are able to displace the plant pathogens from its overwintering substrate contributes to the disease management.
Marie Caroline Ferreira Laborde, Deila Magna dos Santos Botelho, Gabriel Alfonso Alvarez Rodriguez, Mário Lúcio Vilela de Resende, Marisa Vieira de Queiroz, Aline Duarte Batista, Patrícia Gomes Cardoso, Sérgio Florentino Pascholati, Luis Fernando Pascholati Gusmão, Samuel Júlio Martins, Flávio Henrique Vasconcelos de Medeiros   +10 more
openaire   +1 more source

Cercosporin production by Cercospora coffeicola isolates: spectrophotometry and HPLC quantification and image analysis

Chemical Papers, 2021
La cercosporina tiene excelentes propiedades de fotosensibilización que se han utilizado ampliamente en organofotocatalizadores y terapia fotodinámica, así como un agente antimicrobiano. Por lo tanto, es necesario cuantificarlo con precisión con métodos accesibles.
Deila Magna dos Santos Botelho, Mário Lúcio Vilela de Resende, Alexandre Teixeira, Wilder Douglas Santiago, Edson Ampélio Pozza, Silvino Intra Moreira, Juliana Barros Ramos, Sinara Oliveira de Aquino, Antônio G. Ferreira, Tharyn Reichel, Leonor Guerra‐Guimarães   +10 more
openaire   +2 more sources

Abundance of Coffee berry borer in feral, abandoned and managed coffee on Hawaii Island

Journal of Applied Entomology, Volume 144, Issue 10, Page 920-928, December 2020., 2020
Abstract Coffee berry borer (Hypothenemus hampei Ferrari), the most damaging insect pest of coffee worldwide, was first detected on Hawaii Island in 2010. Poorly managed, abandoned and feral coffee sites on the island have since been thought to harbour coffee berry borer (CBB) populations, which then negatively impact neighbouring coffee farms.
Melissa A. Johnson, Nicholas C. Manoukis
wiley   +1 more source

The Toxin Cercosporin is a Virulence Factor for Infection of Coffee by Cercospora coffeicola [PDF]

, 2019
ABSTRACT Brown eye spot, caused by Cercospora coffeicola , causes significant losses in both quality and quantity of coffee production. As many Cercospora spp. produce the photoactivated toxin cercosporin, this study aimed to determine the role of
Souza, A. G. C., Herrero, S., Daub, M. E.   +2 more
openaire   +1 more source

Proteção do cafeeiro contra cercosporiose por acibenzolar-S-metil e proteína harpina Protection of coffee plants against brown eye spot by acibenzolar-S-methyl and harpin protein

Pesquisa Agropecuária Brasileira, 2010
O objetivo deste trabalho foi avaliar, em cafeeiro suscetível, a proteção contra a cercosporiose, pela aplicação da proteína harpina e acibenzolar-S-metil (ASM), e avaliar seu efeito na germinação de conídios e crescimento micelial in vitro.
Diogo Manzano Galdeano, Sylvia Dias Guzzo, Flávia Rodrigues Alves Patrício, Ricardo Harakava   +3 more
doaj   +1 more source

ADUBAÇÃO NITROGENADA E POTÁSSICA E SUA RELAÇÃO COM A INCIDÊNCIA DE CERCOSPORIOSE E FERRUGEM EM CAFEEIRO FERTIRRIGADO

Ciência Agrícola, 2020
O cafeeiro apresenta suscetibilidade a várias doenças, no entanto, as de maior importância e agressividade são a ferrugem, causada pelo fungo Hemileia vastatrix e a cercosporiose, cujo agente etiológico é o fungo Cercospora coffeicola.
Fabrício Júnio Silva, Gleice Aparecida Assis, Fabio Janoni Carvalho, Bruno Sérgio Vieira, Laís Carvalho Santos   +4 more
doaj   +1 more source

First Report of Cercospora coffeicola Causing Cercospora Leaf Spot of Castor Beans in Brazil

Plant Disease, 2011
In a coffee (Coffea arabica) farm located in Ervália, Minas Gerais State, Brazil, we observed castor bean (CB; Ricinnus communis) plants growing as weeds. Currently, there is increasing interest in CB as a crop in Brazil because it is an alternative source for biofuel production, but there is little knowledge on CB diseases.
A G C, Souza, L A, Maffia
openaire   +2 more sources

Potential of essential oils for the control of brown eye spot in coffee plants Potencial de óleos essenciais no controle da cercosporiose-do-cafeeiro

Ciência e Agrotecnologia, 2011
The objectives of this work were to assess the in vitro effect of essential oils extracted from cinnamon, citronella, lemon grass, India clove, tea tree, thyme, neem and eucalyptus on the conidia germination and on mycelial growth of Cercospora ...
Ricardo Borges Pereira, Gilvaine Ciavareli Lucas, Fabiano José Perina, Mário Lúcio Vilela de Resende, Eduardo Alves   +4 more
doaj   +1 more source