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The most important bean diseases in Latin America are listed and the events that occur during the disease cycle are described: inoculation, penetration, infection, and release or dissemination of the pathogen. Disease management or control is also described; this depends on economic, environmenta...

Se enumeran las enfermedades del frijol mas importantes en America Latina y se describen los diferentes eventos que se presentan en el ciclo de las enfermedades: inoculacion, penetracion, infeccion y liberacion o diseminacion del patogeno. Se describe tambien el manejo o control de las enfermedad...


Pastor Corrales, Marcial A.[Conceptos basicos sobre patologia del frijol]Conceptos basicos sobre patologia del frijol

The etiology, symptomatology, cultural and chemical control measures, and general aspects of control through var. resistance to bean diseases are described for the bacterial pathogens Pseudomonas syringae pv. phaseolicola and Xanthomonas campestris pv. phaseoli. Some var. resistant to these patho...

Se describen la etiologia, sintomatologia, medidas de control cultural y quimico, y aspectos generales de control por resistencia var. de las enfermedades del frijol causadas por los patogenos bacterianos Pseudomonas syringae pv. phaseolicola y Xanthomonas campestris pv. phaseoli. Se mencionan al...


Pastor Corrales, Marcial A.[Enfermedades del frijol causadas por bacterias]Enfermedades del frijol causadas por bacterias

Bean rust (Uromyces phaseoli), a common disease with worldwide distribution, is considered one of the most important bean production problems in the tropics. Prolonged periods of moisture and moderate temp. (17-27 degrees C) favor disease development. The infection process begins when a urediospo...

La roya del frijol (Uromyces phaseoli) es una enfermedad a nivel mundial considerada como uno de los problemas mas importantes de la produccion de frijol en el tropico. Periodos prolongados de humedad y temp. moderadas (17-27 grados C) favorecen el desarrollo de la enfermedad. El proceso de infec...


Stavely, J.R.Pastor Corrales, Marcial A.[Rust]Rust

Bean anthracnose, caused by the fungus Colletotrichum lindemuthianum, is a worldwide disease in susceptible var. grown in locations with cool to moderate temp. and with a high RH. It can appear anywhere in the plant. Losses can be up to 100 percent when severely infected seed is planted. For effi...

La antracnosis del frijol, causada por el hongo Colletotrichum lindemuthianum, es una enfermedad que se presenta en todo el mundo en las var. susceptibles establecidas en localidades con temp. moderadas-frias y con alta HR ambiental. Puede aparecer en cualquier parte de la planta. Las perdidas pu...


Pastor Corrales, Marcial A.Tu, J.C.[Anthracnose]Anthracnose

Web blight, caused by the fungus Thanatephorus cucumeris, is prevalent in tropical regions with high to moderate temp. and RH; more than 200 plant species serve as hosts to this pathogen. Hyphae can grow rapidly over healthy tissue of leaves, flowers, petioles, and pods. For efficient control, th...

La mustia hilachosa, causada por el hongo Thanatephorus cucumeris, prevalece en las regiones tropicales con una temp. y HR entre moderada y alta; mas de 200 especies vegetales le sirven de hospedante al patogeno. Las hifas del hongo pueden crecer rapidamente en el tejido sano de las hojas, flores...


Gálvez E., Guillermo E.Mora, B.Pastor Corrales, Marcial A.[Web blight]Web blight

The etiology, symptomatology, cultural and chemical control measures, and general aspects of control through var. resistance to bean diseases are described for the following fungal pathogens: Uromyces phaseoli, Colletotrichum lindemuthianum, Isariopsis griseola, Rhizoctonia solani, Ascochyta phas...

Se describen la etiologia, sintomatologia, medidas de control cultural y quimico, y aspectos generales de control por resistencia var. de las enfermedades del frijol causadas por los patogenos fungicos Uromyces phaseoli, Colletotrichum lindemuthianum, Isariopsis griseola, Rhizoctonia solani, Asco...


Pastor Corrales, Marcial A.[Enfermedades del frijol causadas por hongos]Enfermedades del frijol causadas por hongos

Comparative results are given on the evaluation of bacterial blight in bean germplasm carried out in the glasshouse and in the field. (CIAT)


Silva, L.O. ePastor Corrales, Marcial A.Singh, S.P.[Choice of location for bacterial blight evaluation in common bean]Choice of location for bacterial blight evaluation in common bean

Fifty-three bean (Phaseolus vulgaris) accessions were evaluated for their reactions to infection by Macrophomina phaseolina under field and greenhouse conditions. A field nursery was established on an experimental farm near Santander de Quilichao, Colombia. All accessions were evaluated in paired...


Pastor Corrales, Marcial A.Abawi, G.S.[Reactions of selected bean accessions to infection by Macrophomina phaseolina]Reactions of selected bean accessions to infection by Macrophomina phaseolina

A Brazilian isolate of Fusarium oxysporum f. sp. phaseoli (F. o. f. sp. phaseoli) was used to determine the reactions of 66 lines of beans to the Fusarium yellows pathogen in greenhouse tests. The distal 1 cm of root tips of 1-wk-old seedlings grown in sterilized sand were removed, roots were dip...


Pastor Corrales, Marcial A.Abawi, G.S.[Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli]Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli

The procedures to be followed for the preparation of Rhizoctonia solani inoculum and of inoculum using R. solani micelium, and for the determination of R. solani populations in the soil (complete soil method, OM test, and pathogen attraction) are given. Recommendations for the International Web B...


Abawi, G.S.Pastor Corrales, Marcial A.[Preparado para el grupo participantes del Taller de Mustia]Preparado para el grupo participantes del Taller de Mustia

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