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Report 1979

Autor: Temple, S Schwartz, Howard F. Morales, Francisco José Cardona Mejía, César Schoonhoven, Aart van

The main priority of efforts in genetic improvement of beans is to increase the production in areas where it is currently cultivated. The environment in those areas has unfavorable climatic conditions for the crop and instead, favorable for the disease- insect complex attacking it. Through the co...

Enlace original: https://cgspace.cgiar.org/handle/10568/71380

Investigación en Agricultura
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Temple, S ,  Schwartz, Howard F. ,  Morales, Francisco José ,  Cardona Mejía, César ,  Schoonhoven, Aart van ,  [Orientacion del mejoramiento de frijol en los climas calidos] ,  Orientacion del mejoramiento de frijol en los climas calidos
Book Chapter 1989

Autor: Schwartz, Howard F.

Among the bacterial diseases that attack beans are halo blight (Pseudomonas syringae pv. phaseolicola), which is distributed worldwide and survives in infected seeds and plant residue on the soil surface. Three to five days after infection, small water- soaked spots appear on the lower leaf surfa...

Entre las enfermedades bacterianas que atacan el frijol esta el anublo de halo (Pseudomonas syringae pv. phaseolicola) que se encuentra presente en todo el mundo; sobrevive en semillas infectadas y en residuos vegetales. Tres a 5 dias despues de la infeccion aparecen manchas acuosas en el enves d...

Enlace original: https://cgspace.cgiar.org/handle/10568/81825

Investigación en Agricultura
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Schwartz, Howard F. ,  [Halo blight] ,  Halo blight
Book Chapter 1989

Autor: Schwartz, Howard F. Morales, Francisco José

Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting can affect seed viability, germination, and result in co...

La semilla constituye un metodo eficiente de diseminacion de organismos fitopatogenos a diversas localidades; mas de 50 por ciento de las principales enfermedades del frijol son transmitidas por la semilla. El dano mecanico que ocurre durante la cosecha, trilla y/o siembra tambien puede afectar l...

Enlace original: https://cgspace.cgiar.org/handle/10568/81833

Investigación en Agricultura
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Schwartz, Howard F. ,  Morales, Francisco José ,  [Seed pathology] ,  Seed pathology
Book Chapter 1989

Autor: Schwartz, Howard F.

Bean plants are exposed to many fungal diseases including Alternaria leaf and pod spot, Ascochyta blight, ashy stem blight (Macrophomina phaseolina), Cercospora leaf spot, Chaetoseptoria leaf spot, Diaporthe pod blight, downy mildew (Phytophthora nicotianae var. parasitica and P. phaseoli), Entyl...

Las plantas de frijol estan expuestas a muchas enfermedades causadas por hongos como la mancha foliar y de la vaina por Alternaria, el anublo por Ascochyta, la pudricion gris del tallo (Macrophomina phaseolina), la mancha foliar por Cercospora, la mancha foliar por Chaetoseptoria, el anublo de la...

Enlace original: https://cgspace.cgiar.org/handle/10568/81823

Investigación en Agricultura
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Schwartz, Howard F. ,  [Additional fungal pathogens] ,  Additional fungal pathogens
Book Chapter 1989

Autor: Schwartz, Howard F. Steadman, James R.

White mold, caused by the fungus Sclerotinia (Whetzelinia) sclerotiorum, is distributed worldwide and has more than 300 hosts. It infects flowers, cotyledons, seeds, leaves, or injured plant tissue. The disease can be controlled by crop rotation, flooding, reduced seeding rates, fewer irrigations...

El moho blanco causado por el hongo Sclerotinia (Whetzelinia) sclerotiorum se halla presente en todo el mundo, con mas de 300 plantas hospedantes del patogeno; infecta las flores, cotiledones, semillas, hojas o tejido lesionado. El control de la enfermedad se puede hacer por rotacion de cultivos,...

Enlace original: https://cgspace.cgiar.org/handle/10568/81822

Investigación en Agricultura
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Schwartz, Howard F. ,  Steadman, James R. ,  [White mold] ,  White mold
Journal Article 1979

Autor: Álvarez Ayala, G. Schwartz, Howard F.

Investigations were conducted at CIAT to develop methodology required to evaluate resistance to Isariopsis griseola inherent in bean germplasm and breeding progeny. Abundant sporulation by the pathogen has been achieved by growing isolates in the lab. on V-8 medium incubated at 19 degrees Celsius...

Enlace original: https://cgspace.cgiar.org/handle/10568/88464

Investigación en Agricultura
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Álvarez Ayala, G. ,  Schwartz, Howard F. ,  [Preliminary investigations of pathogenic variability expressed by Isariopsis griseola] ,  Preliminary investigations of pathogenic variability expressed by Isariopsis griseola
Journal Article 1990

Autor: Hill, J.P. Schwartz, Howard F. Salgado, M. Farrera, R.E.
Enlace original: https://cgspace.cgiar.org/handle/10568/88674

Investigación en Agricultura
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Hill, J.P. ,  Schwartz, Howard F. ,  Salgado, M. ,  Farrera, R.E. ,  [Effects of sub-lethal applications of propiconazole on bean rust] ,  Effects of sub-lethal applications of propiconazole on bean rust
Journal Article 1987

Autor: Garrett, K.A. Schwartz, Howard F.

In 1986, 5 commercial bean sites near Holyoke (Colorado, USA) were treated with 4 sprays of cupric hydroxide every 7 to 10 days beginning at least 2 wk. before flowering to (1) sample for the presence of Cu resistance in naturally-occurring epiphytic populations of Pseudomonas syringae pv. syring...

Enlace original: https://cgspace.cgiar.org/handle/10568/88618

Investigación en Agricultura
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Garrett, K.A. ,  Schwartz, Howard F. ,  [Research on pseudomonas bacterial epiphytes in Colorado] ,  Research on pseudomonas bacterial epiphytes in Colorado
Journal Article 1987

Autor: Legard, D.E. Schwartz, Howard F.

Investigations during 1984 and 1985 demonstrated that Pseudomonas syringae pv. phaseolicola (Psp) and Pseudomonas syringae pv. syringae (Pss) occur as epiphytes on dry beans in Colorado. Populations of syringae-type pseudomonads (STPs) were detected on volunteer bean plants throughout northeaster...

Enlace original: https://cgspace.cgiar.org/handle/10568/44118

Investigación en Agricultura
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Legard, D.E. ,  Schwartz, Howard F. ,  [Sources and management of Pseudomonas syringae pv. phaseolicola and Pseudomonas syringae pv. syringae Epiphytes on dry beans in Colorado] ,  Sources and management of Pseudomonas syringae pv. phaseolicola and Pseudomonas syringae pv. syringae Epiphytes on dry beans in Colorado

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