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...
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...
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...
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...
Angular leaf spot, caused by the fungus Isariopsis griseola in tropical and subtropical regions, can cause losses up to 50 percent. The pathogen infects the leaves by entering through the stomata or can be transmitted by the seed. Disease control can be carried out by cultural practices, use of d...
La mancha foliar angular, causada por el hongo Isariopsis griseola en las regiones tropicales y subtropicales, puede ocasionar perdidas de hasta 50 por ciento. El patogeno infecta las hojas penetrando a traves de los estomas o puede transmitirse por la semilla. El control de la enfermedad se pued...
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...
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...
This project aims at: (1) identifying the major pathogens of the bean root rot complex, (2) screening for resistant germplasm, and (3) evaluating low-input control methods that will significantly decrease economic losses caused by root rots in the main bean producing regions of Peru, Ecuador, and...
El presente proyecto tiene por objetivos: 1) identificar los principales patogenos asociados con el complejo de pudriciones radicales del frijol; 2) seleccionar germoplasma resistente; y 3) evaluar metodos de control de bajo costo que permitan disminuir significativamente las perdidas economicas ...
Valladolid, A.
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Chumbiauca, L.
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Munive, J.
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Cantoral, E.
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Esteves, C.
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Peralta, E.
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Minchala, L.
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Defaz, M.
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Rivadeneira, C.
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Quiton, N.
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Pastor Corrales, Marcial A.
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Kornegay, Julia L.
,
[Proyecto: control de las pudriciones radicales del frijol comun (Phaseolus vulgaris L.) en la zona andina]
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Proyecto: control de las pudriciones radicales del frijol comun (Phaseolus vulgaris L.) en la zona andina
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]
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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]
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Reactions of selected bean germ plasm to infection by Fusarium oxysporum f. sp. phaseoli