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Journal Article 1994

Autor: Chakupurakal, J. Markham, R.H. Neuenschwander, P. Sakala, M. Malambo, C. Mulwanda, D. Banda, E. Chalabesa, A. Bird, T. Haug, T.M.

Surveys were carried out in Zambia twice yearly from 1986 to 1990, to assess the impact of a biological control campaign against the cassava mealybug (CM), Phenacoccus manihoti Mat.-Ferr., throughout the infested area. From 1984 onward, the exotic parasitoid Epidinocarsis lopezi (De Santis) (Hym....

Enlace original: https://cgspace.cgiar.org/handle/10568/100893

Investigación en Agricultura
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Chakupurakal, J. ,  Markham, R.H. ,  Neuenschwander, P. ,  Sakala, M. ,  Malambo, C. ,  Mulwanda, D. ,  Banda, E. ,  Chalabesa, A. ,  Bird, T. ,  Haug, T.M. ,  [Biological control of the cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae), in Zambia] ,  Biological control of the cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae), in Zambia
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
Journal Article 1998

Autor: Vowotor, K.A. Meikle, W.G. Ayertey, J.N. Borgemeister, C. Markham, R.H.

The effects of egg clutch size on development and survivorship of the larger grain borer, Prostephanus truncatus (Horn) (Col.: Bostrichidae) on maize were measured in the laboratory using single grains of the white maize variety, TZSR-W, at 30 ± 2°C and 70 ± 5% RH. Varying numbers of P. truncatus...

Enlace original: https://cgspace.cgiar.org/handle/10568/98022

Investigación en Agricultura
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Vowotor, K.A. ,  Meikle, W.G. ,  Ayertey, J.N. ,  Borgemeister, C. ,  Markham, R.H. ,  [Intraspecific competition in larvae of the larger grain borer, Prostephanus truncatus (Horn) with maize grains] ,  Intraspecific competition in larvae of the larger grain borer, Prostephanus truncatus (Horn) with maize grains
Journal Article 1999

Autor: Meikle, W.G. Holst, N. Markham, R.H.

The biology of Sitophilus zeamais Motschulsky, an important pest of stored commodities, is well described in the literature. To integrate current knowledge and to understand better the population dynamics of this species in rural maize, Zea mays L., stores, we developed a distributed-delay, demog...

Enlace original: https://cgspace.cgiar.org/handle/10568/98041

Investigación en Agricultura
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Meikle, W.G. ,  Holst, N. ,  Markham, R.H. ,  [Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa] ,  Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa
Journal Article 1999

Autor: Ayertey, J.N. Meikle, W.G. Borgemeister, C. Camara, M. Markham, R.H.

Laboratory experiments using whole cobs were conducted to examine the effect of varying densities of the larger grain borer, Prostephanus truncatus and the maize weevil, Sitophilus zeamais on rate of population increase by the histerid beetle, Teretriosoma nigrescens, a predator primarily of P. t...

Enlace original: https://cgspace.cgiar.org/handle/10568/98042

Investigación en Agricultura
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Ayertey, J.N. ,  Meikle, W.G. ,  Borgemeister, C. ,  Camara, M. ,  Markham, R.H. ,  [Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)] ,  Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)
Conference Paper 1989

Autor: Markham, R.H. Sicely, E.M.

The Biological Control Program (BCP)of the International Institute of Tropical Agriculture and national biological control programs, established specifically to control exotic cassava pests in Africa, are now evolving to address other pest problems. Formal training syllabuses are therefore to be ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98821

Investigación en Agricultura
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Markham, R.H. ,  Sicely, E.M. ,  [Appropriate support for national programs; training, research, administration and funding] ,  Appropriate support for national programs; training, research, administration and funding
Journal Article 2001-04

Autor: Meikle, W.G. Cherry, A.J. Holst, N. Hounna, B. Markham, R.H.

A fungal entomopathogen, Beauveria bassiana, was used to treat maize ears placed in traditional grain stores against Prostephanus truncatus in a field experiment conducted from September 1997 to March 1998 in the Benin Republic, West Africa. Treatments included oil-based spray with and without co...

Enlace original: https://cgspace.cgiar.org/handle/10568/96591

Investigación en Agricultura
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Meikle, W.G. ,  Cherry, A.J. ,  Holst, N. ,  Hounna, B. ,  Markham, R.H. ,  [The effects of an entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (Hyphomycetes), on Prostephanus truncatus (Horn) (Col: Bostrichdae), Sitophilus zeamais (Col: Curculionidae) and grain losses in stored maize in the Benin Republic] ,  The effects of an entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (Hyphomycetes), on Prostephanus truncatus (Horn) (Col: Bostrichdae), Sitophilus zeamais (Col: Curculionidae) and grain losses in stored maize in the Benin Republic
Journal Article 1997

Autor: Scholz, D. Borgemeister, C. Meikle, W.G. Markham, R.H. Poehling, H.M.

Delta traps baited with maize cobs, which were infested each with one male Prostephanus truncatus (Horn) (Col.: Bostrichidae), were distributed in southern Benin and collected after one, two, three and four weeks. The numbers of P. truncatus caught during the different trapping periods were not s...

Enlace original: https://cgspace.cgiar.org/handle/10568/98652

Investigación en Agricultura
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Scholz, D. ,  Borgemeister, C. ,  Meikle, W.G. ,  Markham, R.H. ,  Poehling, H.M. ,  [Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone] ,  Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone
Journal Article 1997

Autor: Borgemeister, C. Meikle, W.G. Scholz, D. Adda, C. Degbey, P. Markham, R.H.

Investigations were carried out in southern Benin on the annual flight cycle and the effects of weather variables on the flight activity of Prostephanus truncatus (Horn) and its natural enemy, Teretriosoma nigrescens Lewis. Two seasonal peaks in flight activity of P. truncatus were observed, one ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98701

Investigación en Agricultura
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Borgemeister, C. ,  Meikle, W.G. ,  Scholz, D. ,  Adda, C. ,  Degbey, P. ,  Markham, R.H. ,  [Seasonal meteorological factors influencing the annual flight cycle ofProstephanus truncatus (Coleoptera: Bostrichidae) and its predator Teretriosoma nigrescens (Coleoptera:Histeridae) in Benin] ,  Seasonal meteorological factors influencing the annual flight cycle ofProstephanus truncatus (Coleoptera: Bostrichidae) and its predator Teretriosoma nigrescens (Coleoptera:Histeridae) in Benin

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