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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. Yaninek, John S. Wermelinger, B. Herren, H.R. 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/10568/96337

Investigación en Agricultura
Enlace permanente

Gutiérrez, A.P. ,  Yaninek, John S. ,  Wermelinger, B. ,  Herren, H.R. ,  Ellis, C.K. ,  [Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa] ,  Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa
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
Book 1985

Autor: Theberge, R.L. Caveness, F.E. Herren, H.R. Lema, K. Neuenschwander, P. Yaninek, John S.
Enlace original: https://cgspace.cgiar.org/handle/10568/98081

Investigación en Agricultura
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Theberge, R.L. ,  Caveness, F.E. ,  Herren, H.R. ,  Lema, K. ,  Neuenschwander, P. ,  Yaninek, John S. ,  [Common African pests and diseases of cassava, yam, sweet potato and cocoyam] ,  Common African pests and diseases of cassava, yam, sweet potato and cocoyam
Conference Proceedings 1991

Autor: Drukker, B. Yaninek, John S. Coles, R.N. Herren, H.R.

Laboratory and field experiments were performed to test several materials on their suitability as carrier for the aerial release of phyroseiid mites. Relatively few mites adhered to the materials. Nevertheless, mites were rettieved in cassava fields after a mass release, using oat flakes as carri...

Enlace original: https://cgspace.cgiar.org/handle/10568/101737

Investigación en Agricultura
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Drukker, B. ,  Yaninek, John S. ,  Coles, R.N. ,  Herren, H.R. ,  [Aerial release of acarine biological control agents on carrier materials] ,  Aerial release of acarine biological control agents on carrier materials

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