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Posso G, CEValor, J.F.Schoonhoven, Aart van[Resistencia de Phaseolus vulgaris L. silvestre y progenies con frijol cultivado al gorgojo comun Acanthoscelides obtectus (Say) a nivel de campo y laboratorio]Resistencia de Phaseolus vulgaris L. silvestre y progenies con frijol cultivado al gorgojo comun Acanthoscelides obtectus (Say) a nivel de campo y laboratorio

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...


Temple, SSchwartz, Howard F.Morales, Francisco JoséCardona Mejía, CésarSchoonhoven, Aart van[Orientacion del mejoramiento de frijol en los climas calidos]Orientacion del mejoramiento de frijol en los climas calidos

An expt. to study the background soil effects associated with var. resistance in bean pest populations, virus incidence and yield was carried out at the Centro Internacional de Agricultura Tropical (CIAT), Palmira, Colombia from Jan.-March, 1978. The effect of the treatments and of the var. on Em...


Hohmann, C.L.Schoonhoven, Aart vanCardona, C.[Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal]Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal

The effect of maize/bean intercropping on Empoasca kraemeri population and damage, populations of other phytophagous insects, the parasitic action of Anagrus sp. on E. kraemeri, ambient temp. and RH, light intensity, and bean leaf temp. was observed. Two planting dates and 3 maize densities in 2 ...


Hernández R., J.C.Vera G., J.Schoonhoven, Aart vanCardona Mejía, César[Efecto de la asociacion maiz-frijol sobre poblaciones de insectos plagas, con enfasis en Empoasca kraemeri Ross & Moore]Efecto de la asociacion maiz-frijol sobre poblaciones de insectos plagas, con enfasis en Empoasca kraemeri Ross & Moore

Resistance of 360 var. of Phaseolus vulgaris to Empoasca kraemeri was evaluated in the greenhouse. Subsequent field evaluations were made of 30 promising var. when 30 days old. Seedlings in the greenhouse were infested with field-collected adults for 3 days, and resistance to 1st generation nymph...


Eskafi, F.M.Schoonhoven, Aart van[Comparison of greenhouse and field resistance of bean varieties to Empoasca kraemeri (Homoptera Cicadellidae)]Comparison of greenhouse and field resistance of bean varieties to Empoasca kraemeri (Homoptera Cicadellidae)

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