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Journal Article 2016-04-30

Autor: Djomaha, E.S. Ghogomu, R.T. Hanna, R. Ngatat, E.S. Lontchi, N.F.

The effects of neem seeds oil and Imidacloprid (Iron 30SC) systemic insecticide on the populations of three cabbage pests, Brevicoryne brassicae, Lipaphis pseudobrassicae and Plutella xylostella were studied. The study was conducted between June and September 2015. Oil extracts of neem were spray...

Enlace original: https://cgspace.cgiar.org/handle/10568/77328

Investigación en Agricultura
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Djomaha, E.S. ,  Ghogomu, R.T. ,  Hanna, R. ,  Ngatat, E.S. ,  Lontchi, N.F. ,  [The effects of extract of Azadirachta indica (Neem) oil and Imidacloprid (IRON 30SC) on the population dynamics of Brevicoryne brassicae, Lipaphis pseudobrassicae and Plutella xylostella on white cabbage] ,  The effects of extract of Azadirachta indica (Neem) oil and Imidacloprid (IRON 30SC) on the population dynamics of Brevicoryne brassicae, Lipaphis pseudobrassicae and Plutella xylostella on white cabbage
Book 2005

Autor: Alene, A. Neuenschwander, P. Manyong, Victor M. Coulibaly O. Hanna, R.
Enlace original: https://cgspace.cgiar.org/handle/10568/91839

Investigación en Agricultura
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Alene, A. ,  Neuenschwander, P. ,  Manyong, Victor M. ,  Coulibaly O. ,  Hanna, R. ,  [The impact of IITA led biological control of major pests in sub-Saharan African agriculture: a synthesis of milestones and empirical results] ,  The impact of IITA led biological control of major pests in sub-Saharan African agriculture: a synthesis of milestones and empirical results
Journal Article 2005-08

Autor: Hanna, R. Onzo, A. Lingeman, R. Yaninek, John S. Sabelis, M.W.

We applied time series analysis and a mechanistic predator-prey model to long-term data of monthly population counts of the herbivorous pest mite Mononychellus tanajoa and its introduced phytoseiid predator Typhlodromalus aripo from a cassava field in Benin, West Africa. In this approach, we dete...

Enlace original: https://cgspace.cgiar.org/handle/10568/95968

Investigación en Agricultura
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Hanna, R. ,  Onzo, A. ,  Lingeman, R. ,  Yaninek, John S. ,  Sabelis, M.W. ,  [Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa] ,  Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa
Book Chapter 2019-02-08

Autor: Neuenschwander, P. Gnanvossou, D. Hauser, S. Goergen, Georg E. Hanna, R. Norgrove, L. Negloh, K. Agboton, C.
Enlace original: https://cgspace.cgiar.org/handle/10568/100666

Investigación en Agricultura
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Neuenschwander, P. ,  Gnanvossou, D. ,  Hauser, S. ,  Goergen, Georg E. ,  Hanna, R. ,  Norgrove, L. ,  Negloh, K. ,  Agboton, C. ,  [Identifying and managing plant health risks for key African crops: fruit and other tree crops] ,  Identifying and managing plant health risks for key African crops: fruit and other tree crops
Journal Article 2019-04-08

Autor: Fotso Kuate, A. Hanna, R. Doumtsop Fotio, A.R.P. Abang, A.F. Nanga, S.N. Ngatat, S. Tindo, M. Masso, C. Ndemah, R. Suh, C. Fiaboe, K.K.M.

Maize farmers in sub-Saharan Africa recently experienced unusual damage in their farms, attributed to the fall armyworm (FAW) Spodoptera frugiperda (J. E. Smith). This pest was first recorded in Africa in 2016, but detailed information on its distribution and damage and farmer's response in invad...

Enlace original: https://cgspace.cgiar.org/handle/10568/101304

Investigación en Agricultura
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Fotso Kuate, A. ,  Hanna, R. ,  Doumtsop Fotio, A.R.P. ,  Abang, A.F. ,  Nanga, S.N. ,  Ngatat, S. ,  Tindo, M. ,  Masso, C. ,  Ndemah, R. ,  Suh, C. ,  Fiaboe, K.K.M. ,  [Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Cameroon: case study on its distribution, damage, pesticide use, genetic differentiation and host plants] ,  Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Cameroon: case study on its distribution, damage, pesticide use, genetic differentiation and host plants
Book Chapter 2019-02

Autor: Toko, M. Neuenschwander, P. Yaninek, John S. Ortega-Beltran, A. Fanou, A. Zinsou, V. Wydra, K.D. Hanna, R. Fotso, A. Douro-Kpindou, O.K.
Enlace original: https://cgspace.cgiar.org/handle/10568/104002

Investigación en Agricultura
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Toko, M. ,  Neuenschwander, P. ,  Yaninek, John S. ,  Ortega-Beltran, A. ,  Fanou, A. ,  Zinsou, V. ,  Wydra, K.D. ,  Hanna, R. ,  Fotso, A. ,  Douro-Kpindou, O.K. ,  [Identifying and managing plant health risks for key African crops: cassava] ,  Identifying and managing plant health risks for key African crops: cassava
Journal Article 2014-02

Autor: Abang, A.F. Kouamé, C.M. Abang, Mathew M. Hanna, R. Fotso, A.K.
Enlace original: https://cgspace.cgiar.org/handle/10568/72981

Investigación en Agricultura
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Abang, A.F. ,  Kouamé, C.M. ,  Abang, Mathew M. ,  Hanna, R. ,  Fotso, A.K. ,  [Assessing vegetable farmer knowledge of diseases and insect pests of vegetable and management practices under tropical conditions] ,  Assessing vegetable farmer knowledge of diseases and insect pests of vegetable and management practices under tropical conditions
Journal Article 2002

Autor: Gnanvossou, D. Hanna, R. Dicke, M.

Typhlodromalus manihoti and Typhlodromalus aripo are exotic predators of the cassava green mite Mononychellus tanajoa in Africa. In an earlier paper, we showed that the two predators were attracted to odors from M. tanajoa-infested cassava leaves. In addition to the key prey species, M. tanajoa, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/99972

Investigación en Agricultura
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Gnanvossou, D. ,  Hanna, R. ,  Dicke, M. ,  [Prey-related odor preference of the predatory mites Typhlodromalus manihoti and Typhlodromalus aripo (Acari: Phytoseiidae)] ,  Prey-related odor preference of the predatory mites Typhlodromalus manihoti and Typhlodromalus aripo (Acari: Phytoseiidae)
Journal Article 2016-05

Autor: Ndengo, N.E. Ki-Munseki, A.L. Hanna, R. Ngbolua, K.

Cassava is, economically, one of the most important root and tuber crops in Africa. However, its production is compromised by a large number of diseases and pests among which the african root and tuber scale (Stictococcus vayssierei Richard). This insect causes damage that can result in a low yie...

Enlace original: https://cgspace.cgiar.org/handle/10568/83204

Investigación en Agricultura
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Ndengo, N.E. ,  Ki-Munseki, A.L. ,  Hanna, R. ,  Ngbolua, K. ,  [Screening cassava (Manihot esculenta CRANTZ) genotypes for resistance to African root and tuber scale (Stictococcus vayssierei Richard) in differents Agro-ecological zones of Beni (North Kivu, DR Congo)] ,  [Criblage de génotypes de manioc (Manihot esculenta CRANTZ) pour la résistance à la cochenille Africaine de racines et tubercules (Stictococcus vayssierei Richard) dans différentes zones agro-écologiques de Beni (Nord Kivu, RD Congo)] ,  Criblage de génotypes de manioc (Manihot esculenta CRANTZ) pour la résistance à la cochenille Africaine de racines et tubercules (Stictococcus vayssierei Richard) dans différentes zones agro-écologiques de Beni (Nord Kivu, RD Congo)
Journal Article 2003-11

Autor: Onzo, A. Hanna, R. Sabelis, M.

To determine the impact of an acarine predator guild on the abundance of a shared herbivorous prey and its principal exotic predator, a series of surveys were conducted in ca. 200 cassava fields in swamp and non-swamp areas in southwestern Benin, West Africa. For each field, the surveys provided ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96357

Investigación en Agricultura
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Onzo, A. ,  Hanna, R. ,  Sabelis, M. ,  [Interactions in an acarine predator guild: impact on Typhlodromalus aripo abundance and biological control of cassava green mite in Benin, West Africa] ,  Interactions in an acarine predator guild: impact on Typhlodromalus aripo abundance and biological control of cassava green mite in Benin, West Africa

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