Results 21 to 30 of about 175 (141)

Evolução da ferrugem (Hemileia vastatrix) e da cercosporiose (Cercospora coffeicola) em agroecossistemas cafeeiros convencional, organo-mineral e orgânico

Revista Brasileira de Agroecologia, 2012
A presente pesquisa teve como objetivo avaliar a incidência de Hemileia vastatrix (ferrugem) e Cercospora coffeicola (cercosporiose) em agroecossistemas cafeeiros conduzidos sob manejo convencional, organo-mineral e orgânico no município de Poço-Fundo ...
Paulo Rogério Lopes, José Maria Guzman Ferraz, Vanessa Christina Theodoro, Iara Maria Lopes   +3 more
doaj   +2 more sources

Enfermedades que afectan el cultivo de café: Elucidando el ciclo de vida de Roya, Mal de Hilachas y Cercosporiosis

Scientia Agropecuaria, 2023
El café (Coffea spp.) es el segundo producto básico de mayor importancia a nivel mundial, siendo C. arabica su especie más representativa. El cultivo de café es afectado por diferentes enfermedades fúngicas que reducen el área fotosintéticamente activa ...
Anthony A. Moreira-Morrillo, Jean P. Vélez-Zambrano, Silvino Intra Moreira, Felipe R. Garcés-Fiallos   +3 more
doaj   +3 more sources

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

Identificación de las principales enfermedades de la planta del café (Coffea arabica) a través de visión artificial

Ciencia Ergo Sum, 2023
Se utilizan técnicas de reconocimiento de patrones para identificar hojas sanas y cuatro enfermedades de la planta del café Coffeea arabica. Las enfermedades son la roya del café, el minador de la hoja, phoma quema y Cercospora coffeicola. Para lograrlo,
Oscar Eder Flores Colorado, Jair Cervantes Canales, Farid García-Lamont, José Sergio Ruiz Castilla   +3 more
doaj   +1 more source

Growth, nutrition and health of coffee seedlings grown with increasing limestone doses in the substrate

Revista Agrogeoambiental, 2023
During coffee crop formation, seedlings quality is an essential factor to ensure the plants full development. Applying limestone to the substrate is a common practice to correct acidity, thus increasing nutrient availability.
Gabriela de Oliveira Santos Reis, Bruno Manoel Rezende de Melo, Sindynara Ferreira, Lilian Vilela Andrade Pinto   +3 more
doaj   +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

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

Comparison and validation of diagrammatic scales for brown eye spots in coffee tree leaves Comparação e validação de escalas diagramáticas para cercosporiose em folhas de cafeeiro

Ciência e Agrotecnologia, 2011
A diagrammatic scale with six levels (0.1-3.0; 3.1-6.0; 6.1-12.0; 12.1-18.0;18.1-30.0; 30.1-49.0%) was developed, compared, and evaluated along with two other scales to measure the severity of brown eye spots in coffee trees leaves.
Adriano Augusto de Paiva Custódio, Edson Ampélio Pozza, Sarah da Silva Costa Guimarães, Érika Sayuri Maneti Koshikumo, Julián Maurício Agredo Hoyos, Paulo Estevão de Souza   +5 more
doaj   +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