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Journal Article 1990

Autor: Hennessey, R.D. Neuenschwander, P. Muaka, T.

The cassava mealybug, Phenacoccus manihoti Mat.‐Ferr., spread in Zaire from foci at Kinshasa (1973), Mulandi (1978), and Goma (1982). It now occurs over an area of 560 000 km2, mainly in regions with a dry season of at least 90 days. Within these regions the pest occurs principally in areas havin...

Enlace original: https://cgspace.cgiar.org/handle/10568/101847

Investigación en Agricultura
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Hennessey, R.D. ,  Neuenschwander, P. ,  Muaka, T. ,  [Spread and current distribution of the cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae), in Zaire] ,  Spread and current distribution of the cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae), in Zaire
Conference Paper 1990

Autor: Hahn, S.K. Caveness, F.E. Lema, K.M. Theberge, R.L.

IITA's research in breeding cassava and sweet potato for resistance to pests and diseases of major economic importance in Africa is discussed under the headings: breeding cassava for resistance to pests (cassava green spider mite (Mononychellus progresivus and M. tanajoa) and cassava mealybug (Ph...

Enlace original: https://cgspace.cgiar.org/handle/10568/101851

Investigación en Agricultura
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Hahn, S.K. ,  Caveness, F.E. ,  Lema, K.M. ,  Theberge, R.L. ,  [Breeding cassava and sweet potato for pest and disease resistance in Africa] ,  Breeding cassava and sweet potato for pest and disease resistance in Africa
Book 1990

Autor: Yaninek, John S. Moraes , G.J. de Markham, R.H.
Enlace original: https://cgspace.cgiar.org/handle/10568/101877

Investigación en Agricultura
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Yaninek, John S. ,  Moraes , G.J. de ,  Markham, R.H. ,  [Manuel de lacarien vert du manioc (Mononychellus tanajoa) en Afrique: un guide sur sa biologie et sur les methodes dapplication de la lutte biologique classique] ,  Manuel de lacarien vert du manioc (Mononychellus tanajoa) en Afrique: un guide sur sa biologie et sur les methodes dapplication de la lutte biologique classique
Conference Paper 1994

Autor: Ekanayake, I.J. Dixon, A. Asiedu, Robert Izac, A.M.

A substantial impact on Africa agriculture can be made through research on crop improvement for the extensive inland valley agro-ecosystems (IVS) extending from the humid forest to the savanna zones in sub saharan Africa. Systematic surveys of farmers have shown that cassava is a favoured upland ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100970

Investigación en Agricultura
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Ekanayake, I.J. ,  Dixon, A. ,  Asiedu, Robert ,  Izac, A.M. ,  [Improved cassava for inland valley agroecosystems] ,  Improved cassava for inland valley agroecosystems
Journal Article 2019-06

Autor: Betancourth, Carlos Pardo, Juan Manuel Muñoz, Jaime Álvarez, Elizabeth

Frogskin is the most limiting disease of cassava crops in Colombia, causing losses in production up to 90%. Since this disease was associatated with 16SrIII phytoplasma presence, a study was carried out to isolate this phytoplasma using liquid and solid culture media. Root, petiol, stem, leaf and...

Enlace original: https://cgspace.cgiar.org/handle/10568/103612

Investigación en Agricultura
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Betancourth, Carlos ,  Pardo, Juan Manuel ,  Muñoz, Jaime ,  Álvarez, Elizabeth ,  [Isolation of phytoplasmas associated to frogskin disease in cassava = Aislamiento de fi toplasmas asociados a cuero de sapo en yuca] ,  Isolation of phytoplasmas associated to frogskin disease in cassava = Aislamiento de fi toplasmas asociados a cuero de sapo en yuca
Journal Article 1999

Autor: Nukenine, E.N. Dixon, Alfred G.O. Hassan, A.T. Asiwe, J.A.N.

Three field trials were conducted at IITA, Ibadan, Nigeria between 1993 and 1995 to identify a rapid method of screening cassava (Manihot esculenta Crantz) cultivars for canopy retention and to determine the association between canopy retention and resistance to green spider mite (Mononychellus t...

Enlace original: https://cgspace.cgiar.org/handle/10568/96062

Investigación en Agricultura
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Nukenine, E.N. ,  Dixon, Alfred G.O. ,  Hassan, A.T. ,  Asiwe, J.A.N. ,  [Evaluation of cassava cultivars for canopy retention and its relationship with field resistance to green spider mite] ,  Evaluation of cassava cultivars for canopy retention and its relationship with field resistance to green spider mite
Journal Article 1999

Autor: Fokunang, C.N. Akem, C.N. Ikotun, T. Dixon, Alfred G.O.

Twelve cassava (Manihot esculenta Crantz) genotypes were planted under natural field conditions for two different cropping seasons (wet and dry), in 1992 and 1993 at the research farm of the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. The trial studied the effect of p...

Enlace original: https://cgspace.cgiar.org/handle/10568/96063

Investigación en Agricultura
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Fokunang, C.N. ,  Akem, C.N. ,  Ikotun, T. ,  Dixon, Alfred G.O. ,  [Effect of planting season on cassava anthracnose disease development] ,  Effect of planting season on cassava anthracnose disease development
Report 2019

Autor: International Center for Tropical Agriculture
Enlace original: https://cgspace.cgiar.org/handle/10568/101312

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International Center for Tropical Agriculture ,  [CIAT Annual Report 2018 Partnerships for Delivering Impact] ,  CIAT Annual Report 2018 Partnerships for Delivering Impact

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