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Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...

En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...


Lozano, J.C.Bellotti, Anthony C.Reyes, J.A.Howeler, Reinhardt H.Leihner, D.E.Doll, J.[Problemas en el cultivo de la yuca]Problemas en el cultivo de la yuca

A new disease of cassava has been found inducing epidemics in several cassava-growing areas of Colombia during the rainy season. The disease can be recognized by a characteristic exaggerated elongation of the internodes of young stems of infected plants and by the distortion and deformation of th...


Lozano, J.C.Booth, RH[The superelongation disease of cassava]The superelongation disease of cassava

Data on max. and min. severity of attacks by Xanthomonas campestris pv. manihotis, Choanephora cucurbitarum, and Sphaceloma manihoticola were gathered on commercial plantations located in 4 regions of Sucre, Colombia. Regional clones Venezolana and Preta were used. In the region of Bongo, neither...


Laberry, R.Lozano, J.C.[Efecto del origen del material de siembra y el sistema de cultivo en la severidad e incidencia del anublo bacterial, el anublo fungoso y el superalargamiento de la yuca]Efecto del origen del material de siembra y el sistema de cultivo en la severidad e incidencia del anublo bacterial, el anublo fungoso y el superalargamiento de la yuca

Isolates of Sphaceloma and Elsinoë spp. were collected from Euphorbia brasiliensis, Eu. heterophylla, Eu. pulcherrima, Jatropha aconitifolia var. papaya, Manihot carthaginensis, and M. esculenta in Mexico, Costa Rica, the Dominican Republic, and Colombia. M. carthaginensis and J. aconitifolia var...


Zeigler, Robert S.Lozano, J.C.[The relationship of some Elsinoë and Sphaceloma species pathogenic on cassava and other Euphorbiaceae in Central and South America]The relationship of some Elsinoë and Sphaceloma species pathogenic on cassava and other Euphorbiaceae in Central and South America

The incidence and severity of several diseases affecting cassava in monoculture and in association with maize and/or yam in the departments of Cordoba, Bolivar, Sucre, and Atlantico (Colombia) were assessed. Leaf spots (brown leaf spot, white leaf spot, blight leaf spot) and CBB were the most com...


Laberry, R.Lozano, J.C.[Enfermedades en cultivos de yuca asociados con maiz y name en Cordoba, Bolivar, Sucre y Atlantico]Enfermedades en cultivos de yuca asociados con maiz y name en Cordoba, Bolivar, Sucre y Atlantico

Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...

En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...


Lozano, J.C.Bellotti, Anthony C.Reyes, J.A.Howeler, Reinhardt H.Leihner, D.E.Doll, J.[Field problems in cassava]Field problems in cassava

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