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Journal Article 1994

Autor: Neuenschwander, P. Boavida, C. Bokonon-Ganta, A.H. Gado, A. Herren, H.R.

Two specific endophagous parasitoids Gyranusoidea tebygi and Anagyrus mangicola, of Indian origin, were mass‐reared at the International Institute of Tropical Agriculture in Cotonou and released against the mango mealybug Rastrococcus invadens, in collaboration with national biological control pr...

Enlace original: https://cgspace.cgiar.org/handle/10568/100935

Investigación en Agricultura
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Neuenschwander, P. ,  Boavida, C. ,  Bokonon-Ganta, A.H. ,  Gado, A. ,  Herren, H.R. ,  [Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biologigal control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa] ,  Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biologigal control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa
Journal Article 1985-8

Autor: Lema, K.M. Herren, H.R.

The encyrtid wasp Epidinocarsis (= Apoanagyrus) lopezi (De Santis) was imported from Paraguay into Nigeria for the biological control of the cassava mealybug, Phenacoccus manihoti Matile‐Ferrero. It was mass‐reared and released at four localities in Nigeria. The parasitoid is now established and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96441

Investigación en Agricultura
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Lema, K.M. ,  Herren, H.R. ,  [Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti] ,  Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti
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
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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
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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 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
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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 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
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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

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