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Journal Article 1988

Autor: Gutiérrez, A.P. Neuenschwander, P. Schulthess, F. Herren, H.R. Baumgaertner, J.U. Wermelinger, B. Lohr, B. Ellis, C.K.

(1) The effects of the cassava mealybug, Phenacoccus manihoti Mat.-Ferr., on cassava, Manihot esculenta Crantz, growth, development and yields as modified by weather, soil water and nitrogen, and natural enemies were examined. (2) Rainfall-induced mortality and plant carbohydrate stress were the...

Enlace original: https://cgspace.cgiar.org/handle/10568/96338

Investigación en Agricultura
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Gutiérrez, A.P. ,  Neuenschwander, P. ,  Schulthess, F. ,  Herren, H.R. ,  Baumgaertner, J.U. ,  Wermelinger, B. ,  Lohr, B. ,  Ellis, C.K. ,  [Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)] ,  Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)
Journal Article 1988

Autor: Gutiérrez, A.P. Wermelinger, B. Schulthess, F. Baumgaertner, J.U. Herren, H.R. Ellis, C.K. Yaninek, John S.

( 1 ) A model for the growth and development of cassava, Manihot esculenta Crantz, as modified by weather, soil nitrogen and water is described, and used in later papers to evaluate damage by exotic cassava pests and the effectiveness of control by natural. (2) Analogous relationships between t...

Enlace original: https://cgspace.cgiar.org/handle/10568/96339

Investigación en Agricultura
Enlace permanente

Gutiérrez, A.P. ,  Wermelinger, B. ,  Schulthess, F. ,  Baumgaertner, J.U. ,  Herren, H.R. ,  Ellis, C.K. ,  Yaninek, John S. ,  [Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava] ,  Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava
Journal Article 1997

Autor: Schulthess, F. Neuenschwander, P. Gounou, S.

The effect of fertilizer and mulch across tropic level of the cassava ecosystem, i.e. the plant, the cassava mealybug(CM), the wasp Apoanagyrus lopezi and its hyperparasitoids, was studied in two field experiments planted ins southern Benin. Several cassava cultivars with different branching patt...

Enlace original: https://cgspace.cgiar.org/handle/10568/98647

Investigación en Agricultura
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Schulthess, F. ,  Neuenschwander, P. ,  Gounou, S. ,  [Multitrophic interactions in cassava, Manihot esculenta, cropping systems in the subhumid tropics of West Africa] ,  Multitrophic interactions in cassava, Manihot esculenta, cropping systems in the subhumid tropics of West Africa
Journal Article 1986-10

Autor: Neuenschwander, P. Schulthess, F. Madojemu, E.

The capability of Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae) to control the cassava mealybug (CM) Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) was investigated in Nigeria using physical and chemical exclusion experiments. In two sleeve cage experiments CM population...

Enlace original: https://cgspace.cgiar.org/handle/10568/81491

Investigación en Agricultura
Enlace permanente
Neuenschwander, P. ,  Schulthess, F. ,  Madojemu, E. ,  [Experimental evaluation of the efficiency of Epidinocarsis lopezi, a parasitoid introduced into Africa against the cassava mealybug Phenacoccus manihoti] ,  Experimental evaluation of the efficiency of Epidinocarsis lopezi, a parasitoid introduced into Africa against the cassava mealybug Phenacoccus manihoti
Journal Article 1991

Autor: Schulthess, F. Baumgaertner, J.U. Delucchi, V. Gutierrez, A.P

The cassava mealybug (CM), Phenacoccus manihoti Mat.‐Ferr., is a dry season pest of cassava, Manihot esculenta Crantz. Its effects on the patterns of dry matter production and allocation in cassava planted July, September 1982 and May 1983 and grown for 12 months was studied. Peak CM population d...

Enlace original: https://cgspace.cgiar.org/handle/10568/101704

Investigación en Agricultura
Enlace permanente
Schulthess, F. ,  Baumgaertner, J.U. ,  Delucchi, V. ,  Gutierrez, A.P ,  [The influence of the cassava mealybug Phenacoccus manihoti Mat. Ferr. (Hom., Pseudococcidae) on yield formation of cassava, Manifhoti esculenta Crantz] ,  The influence of the cassava mealybug Phenacoccus manihoti Mat. Ferr. (Hom., Pseudococcidae) on yield formation of cassava, Manifhoti esculenta Crantz

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