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Journal Article 1990

Autor: Hammond, W.N.O. Neuenschwander, P.

Following the successful introduction of Epidinocarsis lopezi (De Santis) for biological control of the cassava mealybug (CM) Phenacoccus .manihoti Mat.-Ferr. in southwestern Nigeria in 1981 and 1982, 11 groups of cassava fields were sampled every 2 weeks up to 1988 for impact assessment. After 1...

Enlace original: https://cgspace.cgiar.org/handle/10568/101848

Investigación en Agricultura
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Hammond, W.N.O. ,  Neuenschwander, P. ,  [Sustained biological control of the cassava mealybug Phenacoccus manihoti (Hom: Pseudococcidae) by Epidinocarsis lopezi (Hym.: Encyrtidae) in Nigeria] ,  Sustained biological control of the cassava mealybug Phenacoccus manihoti (Hom: Pseudococcidae) by Epidinocarsis lopezi (Hym.: Encyrtidae) in Nigeria
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

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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
Journal Article 1994

Autor: Neuenschwander, P.

During the Africa-wide Biological Control project, the neotropical parasitoid Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae) was established in 26 African countries, causing a satisfactory reduction in the population density of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Hom...

Enlace original: https://cgspace.cgiar.org/handle/10568/97392

Investigación en Agricultura
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Neuenschwander, P. ,  [Control of the cassava mealybug in Africa: lessons from a biological control project] ,  Control of the cassava mealybug in Africa: lessons from a biological control project
Journal Article 1997

Autor: Staubli Dreyer, B. Baumgaertner, J.U. Neuenschwander, P. Dorn, S.
Enlace original: https://cgspace.cgiar.org/handle/10568/103837

Investigación en Agricultura
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Staubli Dreyer, B. ,  Baumgaertner, J.U. ,  Neuenschwander, P. ,  Dorn, S. ,  [The functional responses of two Hyperaspis notat strains to their prey, the cassava mealybug Phenacoccus manihoti] ,  The functional responses of two Hyperaspis notat strains to their prey, the cassava mealybug Phenacoccus manihoti
Journal Article 1992

Autor: Goergen, Georg E. Neuenschwander, P.

Different combinations of insects belonging to three trophic levels were released in large cages with hydroponie cultures of cassava in a greenhouse. The cassava mealybug (CM )' Phenacoccus manihoti Matile-Ferrero (Horn., Pseudococcidae) was applied at two initial infestation densities to cassava...

Enlace original: https://cgspace.cgiar.org/handle/10568/99912

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Goergen, Georg E. ,  Neuenschwander, P. ,  [A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis] ,  A cage experiment with four trophic levels: cassava plant growth as influenced by cassava mealybud, Phenacoccus manihoti, its parasitoid Epidinocarsis lopezi,and the hyperparasitoids Prochiloneurus insolitus and Chartocerus hyalipennis
Journal Article 1986

Autor: Neuenschwander, P. Madojemu, E.

Cassava mealybugs (CM) of different stages, which had been stung by an E. lopezi female, were inspected after 6 and 20 days. The killing power of the parasitoid was several times higher than the production of parasitoid off-spring. Host-feeding and mutilation were responsible for 6-22% and 11-34%...

Enlace original: https://cgspace.cgiar.org/handle/10568/82688

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Neuenschwander, P. ,  Madojemu, E. ,  [Mortality of the cassava mealybug Phenacoccus manihoti Mat.-Ferr.(Hom., Pseudococcidea) associated with an attack by Epidinocarsis lopezi (Hym., Encyrtidae)] ,  Mortality of the cassava mealybug Phenacoccus manihoti Mat.-Ferr.(Hom., Pseudococcidea) associated with an attack by Epidinocarsis lopezi (Hym., Encyrtidae)
Journal Article 1986

Autor: Neuenschwander, P. Madojemu, E.

In laboratory experiments with Epidinocarsis lopezi, a parasite that has been introduced into Africa for the biological control of Phenacoccus manihoti on cassava, hosts of different stages that had been stung by a female parasite were inspected after 6 and 20 days. The killing power of the paras...

Enlace original: https://cgspace.cgiar.org/handle/10568/96328

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Neuenschwander, P. ,  Madojemu, E. ,  [Mortality of the cassava mealybug, Phenacoccus manihoti MAT.FERR. (Hom., Pseudococcidae), associated with an attack by Epidinocarsis lopezi (Hym., Encyrtidae)] ,  Mortality of the cassava mealybug, Phenacoccus manihoti MAT.FERR. (Hom., Pseudococcidae), associated with an attack by Epidinocarsis lopezi (Hym., Encyrtidae)
Journal Article 1996-09

Autor: Neuenschwander, P.

Techniques for evaluating biological control of cassava mealybug (Phenacoccusmanihoti Matile-Ferrero), mango mealybug (Rastrococcus invadens Williams), and spiralling whitefly (Aleurodicus dispersus Russell) are described. In each case, two exotic hymenopterous parasitoids were introduced. Alone ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101023

Investigación en Agricultura
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Neuenschwander, P. ,  [Evaluating the efficacy of biological control of three of three exotic homopteran pests in Tropical Africa] ,  Evaluating the efficacy of biological control of three of three exotic homopteran pests in Tropical Africa
Journal Article 2001

Autor: Zeddies, J. Schaab, R.P. Neuenschwander, P. Herren, H.R.

Pest populations of the cassava mealybug Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) were reduced successfully by the biological control agent Apoanagyrus (Epidinocarsis) lopezi De Santis (Hymenoptera: Encyrtidae) throughout most of sub-Saharan Africa. The economics of the project...

Enlace original: https://cgspace.cgiar.org/handle/10568/92651

Investigación en Agricultura
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Zeddies, J. ,  Schaab, R.P. ,  Neuenschwander, P. ,  Herren, H.R. ,  [Economics of biological control of cassava mealybug in Africa] ,  Economics of biological control of cassava mealybug in Africa

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