Results 41 to 50 of about 685 (164)

Global Population Structure and Dynamics of Wheat Powdery Mildew

Molecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT The global movement of pests and pathogens can often be traced to human migratory activities that include the movement of agricultural crops. The causal agent of wheat powdery mildew, the ascomycete fungus Blumeria graminis f. sp. tritici (B. graminis f. sp.
Tim Kloppe, Rebecca B. Whetten, Ignazio Carbone, Christina Cowger   +3 more
wiley   +1 more source

Inoculation and Evaluation of Hemileia vastatrix Under Laboratory Conditions

, 2023
AbstractThe coffee leaf rust, a disease caused by the biotrophic fungusHemileia vastatrix, is one of the main limitations in coffee production today as it causes significant economic losses to the coffee production sector. Genetic improvement is an option to solve these problems.
Miguel Barquero-Miranda, María José Cordero-Vega, Kimberly Ureña-Ureña   +2 more
openaire   +1 more source

Incidence-Severity Relationships in the Pathosystem Coffea arabica-Hemileia vastatrix [PDF]

Plant Disease, 1999
Incidence-severity relationships for coffee rust were studied to determine if the easily assessed incidence could be used to evaluate host resistance and fungicide treatment. At two locations in each of 3 years, the incidence of rust on 300 leaves was compared with two assessments of severity: (i) the average number of sporulating pustules per leaf ...
R, Silva-Acuña, L A, Maffia, L, Zambolim, R D, Berger   +3 more
openaire   +2 more sources

BEBERAPA HASIL INOKULASI PADA CAKRAM DAUN KOPI DENGAN HEMILEIA VASTATRIX DI LABORATORIUM

Jurnal Hama dan Penyakit Tumbuhan Tropika, 2012
Some results of inoculations on coffee leaf disks with Hemileia vastatrix.  Leaf rust caused by Hemileia vastatrix B. et Br. is the most important disease on coffee worldwide.  The obligate nature of H.
Cipta Ginting , Abdul Gafur, dan Rusdi Evizal .
doaj   +1 more source

Molecular Identification of Fusarium Species Associated With Coffee Plantations in Bolivia

Journal of Phytopathology, Volume 174, Issue 4, July/August 2026.
ABSTRACT Fungal species associated with coffee and their pathogenic potential remain underexplored in Bolivia. This study aimed to investigate the diversity of Fusarium species associated with coffee in the Amazon basin of Caranavi province in the Yungas region of Bolivia and their ability to induce disease symptoms under controlled conditions. A total
Marisel M. Mamani, Pamela Luque, David Cruz, Lorenzo Quelali, Joel M. Mamani, Dan Funck Jensen, Magnus Karlsson, Carla F. Crespo, Mukesh Dubey   +8 more
wiley   +1 more source

Hemileia vastatrix Berk. & Broome, Gard. Chron., London

, 2023
Published as part of Karunarathna, Samantha C., Priyashantha, K Hasith, Tibpromma, Saowaluck, Galappaththi, Mahesh C. A., Premarathne, Bhagya M., Wijayawardene, Nalin N., Wimalasena, Madhara K., Jayalal, Udeni, Wickramanayake, Kawmini D., Dangalla, Hasanka, Jayathunga, Hashini, Brahmanage, Rashika S., Weerakoon, Gothamie, Ariyawansa, Kahandawa G. S. U.,
Karunarathna, Samantha C., Priyashantha, K Hasith, Tibpromma, Saowaluck, Galappaththi, Mahesh C. A., Premarathne, Bhagya M., Wijayawardene, Nalin N., Wimalasena, Madhara K., Jayalal, Udeni, Wickramanayake, Kawmini D., Dangalla, Hasanka, Jayathunga, Hashini, Brahmanage, Rashika S., Weerakoon, Gothamie, Ariyawansa, Kahandawa G. S. U., Yapa, Neelamanie, Nanayakkara, Chandrika M., Ediriweera, Surani, Fan, Xin-Lei, Kirk, Paul M., Zhang, Gui-Qing, Ediriweera, Aseni, Bhat, Jayarama, Dawoud, Turki M., Kumara, Wasantha, Deng, Chun Ying   +24 more
openaire   +2 more sources

ANTECIPAÇÃO DO CONTROLE DA FERRUGEM-DO-CAFEEIRO (Hemileia vastatrix) COM DIFERENTES FUNGICIDAS

Revista Brasileira de Engenharia de Biossistemas, 2021
O objetivo desta pesquisa foi avaliar a antecipação do controle da ferrugem do cafeeiro (Catuai Amarelo IAC 62) com diferentes fungicidas, sendo realizada em uma lavoura de aproximadamente 23 anos. O delineamento experimental foi em blocos casualizados (
Hernane de Souza, Kleso Silva Franco Júnior, Giselle Prado Brigante, Márcio de Souza Dias, Natália Scalco Ferreira   +4 more
doaj   +1 more source

Secondary Metabolites of Calonectria hemileiae Inhibit Hemileia vastatrix Urediniospore Germination: Evidence for Chemical Mediation in a Mycoparasitic Interaction

Plant Pathology, Volume 75, Issue 4, July‐August 2026.
Calonectria hemileiae, an antagonist of the coffee leaf rust pathogen Hemileia vastatrix, produces low‐molecular weight secondary metabolites that inhibit urediniospore germination. These metabolites likely mediate interfungal interactions and show potential for the development of biofungicides against coffee leaf rust.
Gustavo Silva França de Souza, Bruno Wesley Ferreira, Cristiane Aparecida Franco, Matheus Sarmento Mendonça, Jodieh Oliveira Santana Varejão, Laura Maritza Saavedra Tobar, Robert Weingart Barreto, Eduardo Vinícius Vieira Varejão   +7 more
wiley   +1 more source

Cytological Studies on Germinating Teliospores ofHemileia Vastatrix [PDF]

Caryologia, 1965
SUMMARYMeiosis in the teliospores of Hemileia vastatrix is seen to differ from the rust fungi where the basidium is external. The chromosome number is larger than has been reported for most of the Basidiomycetes. The irregularities recorded under natural conditions suggest some disturbance in the important phase in the life cycle of the fungus ...
C. C. Chinnappa, M. S. Sreenivasan
openaire   +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