Since its accidental introduction into Africa, the cassava mealybug (CM) has spread to about 25 countries. The specific parasitoid Epidinocarsis lopezi, introduced from South America, its area of origin, into Nigeria in 1981, has since been released in more than 50 sites. By the end of 1986 it wa...
Neuenschwander, P.
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Herren, H.R.
,
Harpaz, I.
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Badulescu, D.
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Akingbohungbe, A.E.
,
[Biological control of the cassava mealybug, Phenacoccus manihoti, by the exotic parasitoid Epidinocarsis lopezi in Africa [and Discussion]]
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Biological control of the cassava mealybug, Phenacoccus manihoti, by the exotic parasitoid Epidinocarsis lopezi in Africa [and Discussion]
The encyrtid wasp Epidinocarsis (= Apoanagyrus) lopezi (De Santis) was imported from Paraguay into Nigeria for the biological control of the cassava mealybug, Phenacoccus manihoti Matile‐Ferrero. It was mass‐reared and released at four localities in Nigeria. The parasitoid is now established and ...
Lema, K.M.
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Herren, H.R.
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[Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti]
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Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti
(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.
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Neuenschwander, P.
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Schulthess, F.
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Herren, H.R.
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Baumgaertner, J.U.
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Wermelinger, B.
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Lohr, B.
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Ellis, C.K.
,
[Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)]
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Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)
(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.
,
Yaninek, John S.
,
Wermelinger, B.
,
Herren, H.R.
,
Ellis, C.K.
,
[Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa]
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Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa
( 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]
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Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava