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(1) The effects of the cassava mealybug, Phenacoccus manihoti Mat.-Ferr., on cassava, Manihot esculenta Crantz, growth, development and yields as modified by weather, soil water and nitrogen, and natural enemies were examined. (2) Rainfall-induced mortality and plant carbohydrate stress were the...


Gutiérrez, A.P.Neuenschwander, P.Schulthess, F.Herren, H.R.Baumgaertner, J.U.Wermelinger, B.Lohr, B.Ellis, C.K.[Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)]Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)

( 1 ) A model for the growth and development of cassava, Manihot esculenta Crantz, as modified by weather, soil nitrogen and water is described, and used in later papers to evaluate damage by exotic cassava pests and the effectiveness of control by natural. (2) Analogous relationships between t...


Gutiérrez, A.P.Wermelinger, B.Schulthess, F.Baumgaertner, J.U.Herren, H.R.Ellis, C.K.Yaninek, John S.[Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava]Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava

The ear borer Mussidia nigrivenella Ragonot is a polyphagous insect pest that feeds on various cultivated and wild plants. Surveys in four agro-ecological zones of Benin, conducted between 1993 and 1997, revealed ≈20 plant species from 11 plant families hosting the borer, but only 13 host plants ...


Sétamou, M.Schulthess, F.Poehling, H.Borgemeister, C.[Host plants and population dynamics of the cob borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin]Host plants and population dynamics of the cob borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin

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