Results 31 to 40 of about 1,130 (114)

First Report of Powdery Mildew Caused by Erysiphe vignae on Cowpea (Vigna unguiculata) in Brazil

Journal of Phytopathology, Volume 174, Issue 4, July/August 2026.
ABSTRACT Cowpea (Vigna unguiculata) is an important field crop that exhibits a high level of adaptation to the semiarid regions of Brazil. Powdery mildew was previously considered a minor disease of cowpea in this region. However, the disease has become increasingly frequent and economically important following the expansion of cowpea cultivation into ...
Rafaela C. F. Borges, Nelly M. Porras‐Diaz, Maria D. M. Santos, Maria E. N. Fonseca, Leonardo S. Boiteux, Josiene S. Veloso, Ailton Reis   +6 more
wiley   +1 more source

Evaluación sintomatológica del estado fitosanitario del arbolado urbano de la ciudad de Loja, Ecuador

Bosques Latitud Cero
El estado fitosanitario del arbolado urbano es fundamental para garantizar la estabilidad estructural, la longevidad y la provisión de servicios ecosistémicos.
Paulina Fernández-Guarnizo, Deicy Lozano, Andrés Armijos-Montaño, Nohemí Jumbo, Darwin Pucha   +4 more
doaj   +1 more source

Transcriptomic Analysis of the CM-334/P. capsici/N. aberrans Pathosystem to Identify Components in Plant Resistance and Resistance-Breaking Responses

International Journal of Plant Biology, 2022
Phytophthora capsici is an important pathogen worldwide because its spread affects pepper production globally. The “Criollo de Morelos” pepper 334 (CM-334) is resistant to P.
Olivia Nabor-Romero, Reyna Isabel Rojas-Martínez, Emma Zavaleta-Mejía, Julio Vega-Arreguin, Daniel Ochoa-Martínez, Alejandro Sánchez-Flores, Mariana Romo-Castillo   +6 more
doaj   +1 more source

Xanthomonas euvesicatoria Associated With Outbreaks of Bacterial Blight of Onion in Central Brazil

Plant Pathology, Volume 75, Issue 4, July‐August 2026.
An investigation into bacterial blight (Xanthomonas euvesicatoria) outbreaks in Brazilian onions highlights the critical role of weeds and leftover soybeans as pathogen reservoirs. Effective disease control requires managing these alternative hosts. ABSTRACT Since 2018, outbreaks of typical bacterial blight caused by Xanthomonas have been observed in ...
Luciellen da Costa Ferreira, Angelica Rodrigues Alves, Wellington da Silva Macedo, Maurício Rossato, Valter Rodrigues Oliveira, Alice M. Quezado‐Duval   +5 more
wiley   +1 more source

Reconocimiento y dispersión de hongos causantes del "picamento" (Rayspeck) en crisantemo (Chrysanthemum morifolium ram) en condiciones de invernadero

Acta Biológica Colombiana, 1992
The recongnition of the fungi causing ray speck and their dispersion in chrysantemum (Chrysanthemum morifolium RAM) cv. Polaris, was carried out under greenhouse conditions.
Jorge Arturo Baquero, Martha Isabel Valencia, Emira Garces de Granada, Indiana Bustos B.   +3 more
doaj  

Effector Repertoire of Phytophthora betacei: In Search of Possible Virulence Factors Responsible for Its Host Specificity

Frontiers in Genetics, 2020
Phytophthora betacei is an oomycete plant pathogen closely related to Phytophthora infestans. It infects tree tomato (Solanum betaceum) in northern South America, but is, under natural conditions, unable to infect potatoes or tomatoes, the main hosts of ...
Paola Rojas-Estevez, David A. Urbina-Gómez, David A. Ayala-Usma, David A. Ayala-Usma, Natalia Guayazan-Palacios, Maria Fernanda Mideros, Adriana J. Bernal, Martha Cardenas, Silvia Restrepo   +8 more
doaj   +1 more source

First Report of Fusarium oxysporum f. sp. cubense Tropical Race 4 Causing Fusarium Wilt to Bananas in Ecuador

New Disease Reports, Volume 54, Issue 2, October/December 2026.
S. Pachacama, D. Mostert, J. Guevara, M. Fernández, H. Regalado, W. Enríquez, L. Rivera, C. Muentes, M. Iza‐Arteaga, I. Garzón, F. Magdama, E. Paredes, L. Monserrate‐Maggi, A. Leiva, W. Cuellar, A. Viljoen, A. Garrido   +16 more
wiley   +1 more source

Standard Area Diagram Design Determines Accuracy, Speed and Sampling Efficiency in Coffee Leaf Rust Assessment

Plant Pathology, Volume 75, Issue 4, July‐August 2026.
A new two‐colour 10‐diagram standard area diagram (SAD) for coffee leaf rust was developed and validated in both laboratory and field environments, and compared with previous true‐colour 21‐diagram SAD. Overall, a simplified SAD preserved statistical performance while improving operational efficiency, enabling the same level of precision with reduced ...
Mary Paz Romero‐Benavides, Hugo Sebastião Sant' Anna Andrade, Emmeline Machado França, Débora Ribeiro Gonçalves, Luciana Gomes Soares, Carlos Victor Vieira Queiroz, Isabella Pinto de Oliveira, Waldênia de Melo Moura, Emerson Medeiros Del Ponte   +8 more
wiley   +1 more source

Phylogenetic and Population Genetic Analyses Reveal Patterns of Divergence Among Isolates of Ceratocystis manginecans

Ecology and Evolution, Volume 16, Issue 5, May 2026.
Isolates considered broadly as Ceratocystis manginecans have long presented taxonomic challenges due to minimal morphological differences, interfertility and varied species concepts. By analysing seven gene regions, 16 SSR loci, and representative morphological traits across isolates from diverse hosts and regions, we identified two genetically ...
Kira M. T. Lynn, Michael J. Wingfield, Leonardo S. S. Oliveira, Acelino C. Alfenas, Rafael Ferreira Alfenas, Seonju Marincowitz, Irene Barnes   +6 more
wiley   +1 more source

Evaluation of antifungal and antimycotoxigenic activity of selected natural antioxidants against Fusarium culmorum: in vitro and in planta assays

Journal of the Science of Food and Agriculture, Volume 106, Issue 7, Page 4417-4425, May 2026.
Abstract BACKGROUND Fusarium culmorum causes Fusarium head blight (FHB) in cereals, leading to significant yield losses and contamination with type B trichothecene mycotoxins such as deoxynivalenol (DON) and its acetylated derivatives 3‐ADON and 15‐ADON.
Safa Oufensou, Davide Fabbri, Maria Antonietta Dettori, Paola Carta, Emanuela Azara, Valeria Ugone, Virgilio Balmas, Ismael Malbrán, Quirico Migheli   +8 more
wiley   +1 more source