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...
Ceballos L., Luis Fernando
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Romero S., Alfredo A.
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Bellotti, Anthony C.
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Arias V., Bernardo
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[El Control de Erinnyis ello (L) gusano cachón de la yuca [conjunto audiotutorial]]
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El Control de Erinnyis ello (L) gusano cachón de la yuca [conjunto audiotutorial]
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.
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Bellotti, Anthony C.
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Reyes, J.A.
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Howeler, Reinhardt H.
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Leihner, D.E.
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Doll, J.
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[Problemas en el cultivo de la yuca]
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Problemas en el cultivo de la yuca
The management of a sudden high population of the cassava hornworm (Erinnyis ello) is discussed on the basis of data referring to those occurring in Santander de Quilichao in May 1980, in plantations at the exptl. station at the Centro lnternacional de Agricultura Tropical (CIAT), and in a neighb...
Bellotti, Anthony C.
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[Manejo de una explosion del gusano cachon Erinnyis ello (L) (Lepidoptera: Sphingidae)]
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Manejo de una explosion del gusano cachon Erinnyis ello (L) (Lepidoptera: Sphingidae)
A program of biological control of the cassava hornworm appears feasible. The following biological control agents have been found to reduce hornworm populations effectively: Trichogramma spp. (egg parasites), Apanteles spp. (larval parasites), Polistes spp. (larval predators) and Bacillus thuring...
Bellotti, Anthony C.
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Arias, V.B.
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Vargas H., Octavio
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Peña, JE
,
[Pérdidas de rendimiento del cultivo de yuca causadas por insectos y ácaros]
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Pérdidas de rendimiento del cultivo de yuca causadas por insectos y ácaros
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...
Insects and mites that attack cassava are described and grouped according to the part of the plant affected, and some control measures are given: (1) Insects that attack planting material: scale insects (Aonidomytilus albus), fruit flies (Anastrepha spp.) and stemborers (Coleoptera). (2) Cuttings...
Se describen los insectos y acaros que atacan la yuca, agrupados segun la parte de la planta que afectan, y se presentan algunas medidas de control: 1) Insectos que atacan el material de siembra: insectos escamas (Aonidomytilus albus), mosca de la fruta (Anastrepha spp.) y barrenadores del tallo ...
Bellotti, Anthony C.
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Reyes Q., Jesús Antonio
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Arias V., Bernardo
,
Vargas H., Octavio
,
[Insectos y ácaros de la yuca y su control]
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Insectos y ácaros de la yuca y su control
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...
Urias López, Mario Alfonso
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Bellotti, Anthony C.
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Bravo Mojica, Hiram
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Carrillo Sánchez, José Luis
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[Impacto de insecticidas sobre tres parasitoides de Erinnyis ello (L.) gusano de cuerno de la yuca]
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Impacto de insecticidas sobre tres parasitoides de Erinnyis ello (L.) gusano de cuerno de la yuca
Herrera Fernández, C.J.
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Prieto, S
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Chavarriaga Aguirre, Paul
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López, D.
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Bellotti, Anthony C.
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Tohme, Joseph M.
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Susurluk, A
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[En pruebas de plantas transgénicas, aparecen indicios de resistencia de un clon africano, TMS-60444, al gusano cachón de la yuca, Erinnys ello]
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En pruebas de plantas transgénicas, aparecen indicios de resistencia de un clon africano, TMS-60444, al gusano cachón de la yuca, Erinnys ello
Oviposition by the cassava hornworm,Erinnyis ello L., was quantified for upper (abaxial) and lower (adaxial) leaf surfaces of cassava in the department of Tolima, Colombia. Relative rates of egg parasitism byTelenomus sphingis Ashmead on the different leaf surfaces were determined and compared. A...
Gold, CS
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Altieri, Miguel A.
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Bellotti, Anthony C.
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[Relative oviposition rates of the cassava hornworm, Erinnyis ello (Lep.: Sphingidae), and accompanying parasitism by Telenomus sphingis (Hym.: Scelionidae), on upper and lower leaf surfaces of cassava]
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Relative oviposition rates of the cassava hornworm, Erinnyis ello (Lep.: Sphingidae), and accompanying parasitism by Telenomus sphingis (Hym.: Scelionidae), on upper and lower leaf surfaces of cassava