Descubre y comparte nuestro conocimiento público

Se han encontrado 22 recursos

Resultados de búsqueda

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/10568/98070

Investigación en Agricultura
Enlace permanente

Theberge, R.L. ,  Caveness, F.E. ,  Herren, H.R. ,  Lema, K. ,  Neuenschwander, P. ,  Yaninek, John S. ,  [Les principaux ravageurs et maladies du manioc, de ligname, de la patate douce et des aracees en Afrique] ,  Les principaux ravageurs et maladies du manioc, de ligname, de la patate douce et des aracees en Afrique
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
Enlace permanente

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
Journal Article 1997

Autor: Meikle, W.G. Gutiérrez, A.P. Herren, H.R.

Budgets for palm-oil and palm-alcohol production were constructed to show the economic benefit of each activity to smallholder farmers in southern Benin. The selling prices of oil palms to alcohol distillers, who cut the trees, were approximately equal to the annual fruit revenue for that tree. S...

Enlace original: https://cgspace.cgiar.org/handle/10568/98656

Investigación en Agricultura
Enlace permanente
Meikle, W.G. ,  Gutiérrez, A.P. ,  Herren, H.R. ,  [Decisionmaking by smallholder farmers in an oil plambased economy in southern Benin, West Africa] ,  Decisionmaking by smallholder farmers in an oil plambased economy in southern Benin, West Africa
Journal Article 1992

Autor: Yaninek, John S. Megevand, B. Moraes, G.J. Bakker, F. Braun, A. Herren, H.R.

Populations of the phytoseiid predator Amblyseius(=Neoseiulus) idaeus (Denmark & Muma) From Northeastern Brazil, have been successfully introduced into Benin, West Africa, as part of a classical biological control campaign to control the exotic cassava green mite, Mononychellus tanajoa (Bondar). ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100029

Investigación en Agricultura
Enlace permanente
Yaninek, John S. ,  Megevand, B. ,  Moraes, G.J. ,  Bakker, F. ,  Braun, A. ,  Herren, H.R. ,  [Establishment of the neotropicalpredator Amblyseius idaeus(Acari: Phytoseiidae) in Benin, West Africa] ,  Establishment of the neotropicalpredator Amblyseius idaeus(Acari: Phytoseiidae) in Benin, West Africa
Journal Article 1987

Autor: Neuenschwander, P. Hennessey, R.D. Herren, H.R.

About 130 species of parasitoids and predators are reported, most of them for the first time, to be associated directly or indirectly with the cassava pest Phenacoccus manihoti Matile-Ferrero and its parasitoid, Epidinocarsis lopezi (De Santis), newly introduced into Africa as a biological contro...

Enlace original: https://cgspace.cgiar.org/handle/10568/81508

Investigación en Agricultura
Enlace permanente
Neuenschwander, P. ,  Hennessey, R.D. ,  Herren, H.R. ,  [Food web of insects associated with the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), and its introduced parasitoid, Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae), in Africa] ,  Food web of insects associated with the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), and its introduced parasitoid, Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae), in Africa
Journal Article 1990

Autor: Yaninek, John S. Gutiérrez, A.P. Herren, H.R.

Seasonally dense populations of Mononychellus tanajoa (Bondar), feeding on the leaves of cassava, Manihot esculenta Crantz, significantly reduced the leaf, stem, and storage-root dry matter of mite-infested plants. Stressed plants met metabolic demands by remobilizing the dry matter in stems and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101807

Investigación en Agricultura
Enlace permanente
Yaninek, John S. ,  Gutiérrez, A.P. ,  Herren, H.R. ,  [Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: impact on dry matter production and allocation in cassava, Manihot esculenta] ,  Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: impact on dry matter production and allocation in cassava, Manihot esculenta
Journal Article 1990

Autor: Herren, H.R.

The cassava mealybug (CM), Phenacoccus manihoti Matile-Ferrero was unknown to science when it was first discovered in 1973, along the Congo-Zaire river in Central Africa. In 1981, following inten¬ sive exploration and taxonomie studies, CM was found to have originated from a limited area of South...

Enlace original: https://cgspace.cgiar.org/handle/10568/101846

Investigación en Agricultura
Enlace permanente
Herren, H.R. ,  [Biological control as the primary option in sustainable pest management: the cassava pest project] ,  Biological control as the primary option in sustainable pest management: the cassava pest project
Book 1990

Autor: Yaninek, John S. Herren, H.R.
Enlace original: https://cgspace.cgiar.org/handle/10568/101879

Investigación en Agricultura
Enlace permanente
Yaninek, John S. ,  Herren, H.R. ,  [La lutte biologique: une solution durable aux problemes poses par les depredateurs des cultures en Afrique] ,  La lutte biologique: une solution durable aux problemes poses par les depredateurs des cultures en Afrique
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
Enlace permanente
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

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo