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This audiotutorial unit (cassette, printed script, 70 color slides, study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape recorder. Each unit is available from the D...
Esta unidad audiotutorial (cinta magnetofonica, guion, 70 transparencias a color, guia de estudio, auto-evaluacion), preparada por la Unidad de Comunicaciones del CIAT, esta disponible para usarla en sincronizacion automatica o manual por medio de un proyector de transparencias o una grabadora de...
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...
Aspects related to pest management in cassava are discussed: (1) favorable factors involved insect/plant/environment interactions; (2) characteristics of insect survival; (3) integrated, biological control and pest management. On the basis of research conducted by CIAT on Erinnyis ello, a managem...
Se discuten aspectos relacionados con el manejo de plagas en la yuca: 1) factores favorables involucrados en la interaccion insecto/planta/medio ambiente; 2) caracteristicas de supervivencia de los insectos; 3) control integrado, biologico y manejo de plagas. Con base en las investigaciones reali...
The effect of the application of ethyl parathion, trichlorfon, diflubenzuron, and Bacillus thuringiensis var. kurstaki to eggs of Erinnyis ello, before and after being parasitized by Trichogramma exiguum and Telenomus sphingis, was studied. Insecticides were also tested on the adults of these par...
Chemical exclusion of predators with permethrin was used to test the effectiveness of the phytoseiid predator Amblyseius limonicus Garman and McGregor and a complex of minor predators in the biological control of tetranychid (Mononychellus spp., Tetranychus spp., and Oligonychus peruvianus McGreg...
Cassava, one of the world's major food crops is grown throughout the tropical regions of the world. Cassava originated in the neotropics; it was introduced into West Africa from Brazil by slave traders in the 1500's, and taken to Asia during the 17th century. Consequently the greatest diversity o...
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