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Journal Article 2006

Autor: Adango, E. Onzo, A. Hanna, R. Atachi, P. James, B.

It is well recognized that the quality of host plants affects the development and survival of plant-feeding arthropods. The effects of two leafy vegetable crops, amaranth, Amaranthus cruentus L. (Caryophyllales: Amaranthaceae) and nightshade, Solanum macrocarpon L. (Solanales: Solanaceae) were ex...

Enlace original: https://cgspace.cgiar.org/handle/10568/91405

Investigación en Agricultura
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Adango, E. ,  Onzo, A. ,  Hanna, R. ,  Atachi, P. ,  James, B. ,  [Comparative demography of the spider mite Tetranychus ludeni on two host plants in West Africa.] ,  Comparative demography of the spider mite Tetranychus ludeni on two host plants in West Africa.
Journal Article 2003

Autor: Onzo, A. Hanna, R. Zannou, I. Sabelis, M.W. Yaninek, John S.
Enlace original: https://cgspace.cgiar.org/handle/10568/97983

Investigación en Agricultura
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Onzo, A. ,  Hanna, R. ,  Zannou, I. ,  Sabelis, M.W. ,  Yaninek, John S. ,  [Dynamics of refuge use: diurnal vertical migration of predatory and herbivorous mites within cassava plants] ,  Dynamics of refuge use: diurnal vertical migration of predatory and herbivorous mites within cassava plants
Journal Article 2011-08

Autor: Kumar, P.L. Hanna, R. Alabi, O.J. Soko, M.M. Oben, T.T. Vangu, G.H.P. Naidu, R.A.

Banana bunchy top virus (BBTV) was first reported from sub-Saharan Africa (SSA) from Democratic Republic of Congo (DRC) in the 1950s, has become invasive and spread into 11 countries in the region. To determine the potential threat of BBTV to the production of bananas and plantains (Musa spp.) in...

Enlace original: https://cgspace.cgiar.org/handle/10568/88191

Investigación en Agricultura
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Kumar, P.L. ,  Hanna, R. ,  Alabi, O.J. ,  Soko, M.M. ,  Oben, T.T. ,  Vangu, G.H.P. ,  Naidu, R.A. ,  [Banana bunchy top virus in subSaharan Africa: investigations on virus distribution and diversity] ,  Banana bunchy top virus in subSaharan Africa: investigations on virus distribution and diversity
Journal Article 2007

Autor: Zannou, I.D. Moraes, G.J. de Ueckermann, E.A. Oliveira, A.R. Yaninek, John S. Hanna, R.

This is the fifth publication in a series to determine the phytoseiid mites of sub-Saharan Africa. Thirty-one phytoseiid species of the subtribe Amblyseiina are reported in this paper. They refer to all species of this subtribe known to occur in sub-Saharan Africa. Ten of these species are descri...

Enlace original: https://cgspace.cgiar.org/handle/10568/93003

Investigación en Agricultura
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Zannou, I.D. ,  Moraes, G.J. de ,  Ueckermann, E.A. ,  Oliveira, A.R. ,  Yaninek, John S. ,  Hanna, R. ,  [Phytoseiid mites of the subtribe Amblyseiina (Acari: Phytoseiidae: Amblyseiini) from sub-Saharan Africa] ,  Phytoseiid mites of the subtribe Amblyseiina (Acari: Phytoseiidae: Amblyseiini) from sub-Saharan Africa
Journal Article 2007-05

Autor: Zannou, I.D. Hanna, R. Agboton, B. Moraes, G.J. de Kreiter, S. Phiri, G. Jone, A.

The need to evaluate non-target effects of classical biological control of arthropod pests has received considerable attention in recent years. We determined with repeated field surveys the changes in abundance and distribution of the phytoseiid mite fauna in cassava fields resulting from the int...

Enlace original: https://cgspace.cgiar.org/handle/10568/93024

Investigación en Agricultura
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Zannou, I.D. ,  Hanna, R. ,  Agboton, B. ,  Moraes, G.J. de ,  Kreiter, S. ,  Phiri, G. ,  Jone, A. ,  [Native phytoseiid mites as indicators of non-target eVects of the introduction of Typhlodromalus aripo for the biological control of cassava green mite in Africa] ,  Native phytoseiid mites as indicators of non-target eVects of the introduction of Typhlodromalus aripo for the biological control of cassava green mite in Africa
Journal Article 2007-02

Autor: Zundel, C. Hanna, R. Scheidegger, Urs C. Nagel, P.

The establishment of the neotropical predatory mite Typhlodromalus aripo in sub-Saharan Africa has resulted in broadly successful biological control of the cassava green mite Mononychellus tanajoa throughout the cassava belt of Africa. In some mid-altitude areas and drier lowland savannahs of sub...

Enlace original: https://cgspace.cgiar.org/handle/10568/92375

Investigación en Agricultura
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Zundel, C. ,  Hanna, R. ,  Scheidegger, Urs C. ,  Nagel, P. ,  [Living at the threshold: where does the neotropical phytoseiid mite Typhlodromalus aripo survive the dry season?] ,  Living at the threshold: where does the neotropical phytoseiid mite Typhlodromalus aripo survive the dry season?
Book Chapter 2017

Autor: Sonwa, D.J. Hanna, R.

Population growth and the expansion of small holders and industrial and large scale agriculture are considered to be major drivers of deforestation and forest degradation in the Congo Basin. Various innovations in agricultural practices are necessary to improve productivity, enhance producer live...

Enlace original: https://cgspace.cgiar.org/handle/10568/90563

Investigación en Agricultura
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Sonwa, D.J. ,  Hanna, R. ,  [Innovation in agriculture reduces pressure on forests] ,  Innovation in agriculture reduces pressure on forests
Conference Paper 2007

Autor: Kariuki, C.W. Hanna, R. Toko, M. Ngari, B.M.

Cassava green mite, Mononychellus tanajoa (Bondar) has been a major pest of cassava since its accidental introduction in Africa. Studies conducted recently on its biological control in the major cassava growing areas in Kenya demonstrate definite establishment of Typhlodromalus aripo in Kenya. Th...

Enlace original: https://cgspace.cgiar.org/handle/10568/90610

Investigación en Agricultura
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Kariuki, C.W. ,  Hanna, R. ,  Toko, M. ,  Ngari, B.M. ,  [The spread and persistence of exotic phytoseiid, typhlodromahs aripo de leon (acari: phytoseiidae) and its effect on cassava green mite in Kenya] ,  The spread and persistence of exotic phytoseiid, typhlodromahs aripo de leon (acari: phytoseiidae) and its effect on cassava green mite in Kenya
Conference Paper 2007

Autor: Tata-Hangy, K.W. Legg, J.P. Hanna, R. Toko, M. Lema, K.M. Dixon, A. Mahungu, N.M.

A countrywide survey on cassava constraints in D.R. Congo was initiated in 2002 and completed in 2004 with the aim of assessing the health status of cassava in various agro-ecological zones of the 11 provinces of the country. The survey permitted to update the list of diseases and pests that cont...

Enlace original: https://cgspace.cgiar.org/handle/10568/90614

Investigación en Agricultura
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Tata-Hangy, K.W. ,  Legg, J.P. ,  Hanna, R. ,  Toko, M. ,  Lema, K.M. ,  Dixon, A. ,  Mahungu, N.M. ,  [Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo] ,  Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo
Conference Paper 2007

Autor: Gnanvossou, D. Hanna, R. Pallangyo, B. Toko, M. Nsami, E. Mfugale, O.

Two surveys were conducted in Tanzania in May- June 2003 and June-August 2004 to determine the incidence and severity of several cassava arthropod pests including cassava green mite, cassava mealybug, spiralling whitefly, Bemisia spp., cassava scale, red mite, Zonocerus elegans, and several speci...

Enlace original: https://cgspace.cgiar.org/handle/10568/90612

Investigación en Agricultura
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Gnanvossou, D. ,  Hanna, R. ,  Pallangyo, B. ,  Toko, M. ,  Nsami, E. ,  Mfugale, O. ,  [Distribution and abundance of cassava pests in Tanzania with a note on the spiralling whitefly] ,  Distribution and abundance of cassava pests in Tanzania with a note on the spiralling whitefly

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