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Field surveys were conducted on cowpea and pigeon pea in 1995 and 1996 to assess the effect of indigenous egg parasitoids on populations of Clavigralla tomentosicollis Stål in northern Nigeria. From the egg masses of C. tomentosicollis, three species of Hymenoptera belonging to three families, na...


Asante, Stephen K.Jackai, L.E.N.Tamo, M.[Efficiency of Gryon fulviventris (Hymenoptera: Scelionidae) as an egg parasitoid of Clavigralla tomentosicollis Stal. (Hemiptera: Coreidae) in northern Nigeria]Efficiency of Gryon fulviventris (Hymenoptera: Scelionidae) as an egg parasitoid of Clavigralla tomentosicollis Stal. (Hemiptera: Coreidae) in northern Nigeria

The banana weevil Cosmopolites sordidus Germar, has evaded all efforts to manage it in all banana-based cropping systems except the commercial plantation banana system, where the 2 to 3 year crop cycle and the intensity of management limit the pest survival in that system. Conversely, in backyard...


Karamura, E.B.Gold, C.[The elusive banana weevil Cosmopolites sordidus Germar]The elusive banana weevil Cosmopolites sordidus Germar

Rice insect pest management in Nigeria is compartmentalized; literature documenting the status of research on the biology and significance of insect pests and on their management, has therefore been reviewed. A holistic, broadly based, multidisciplinary pest-management research approach is sugges...


Umeh, E.D.N.Joshi, R.C.Ukwungwu, M.N.[Biology, status and management of rice insect pest in Nigeria]Biology, status and management of rice insect pest in Nigeria

High-yielding varieties and improved agronomy have led to substantial increases in cassava crop productivity throughout Southeast Asia; however, in recent years, those advances are being jeopardized by recurrent outbreaks of several non-native arthropod pests and (insect-vectored) pathogens. In t...


Graziosi, IgnazioWyckhuys, Kris A.G.[Integrated management of arthropod pests of cassava: the case of Southeast Asia]Integrated management of arthropod pests of cassava: the case of Southeast Asia

More effective control of the tsetse fly in Africa will reduce constraints imposed by the livestock disease, trypanosomiasis. Trypanosomiasis lowers livestock productivity, and in some areas, may limit the ability of farmers to keep livestock and plough the land using animal traction. Control of ...


Reid, Robin S.Wilson, C.J.Kruska, R.L.Mulatu, W.[Impacts of tsetse control and land-use on vegetative structure and tree species composition in south-western Ethiopia]Impacts of tsetse control and land-use on vegetative structure and tree species composition in south-western Ethiopia
Coyne, D.L.[Local Focus: safe and effective pest and crop management strategies to strengthen the vegetable value chain in the humid tropics]Local Focus: safe and effective pest and crop management strategies to strengthen the vegetable value chain in the humid tropics

Chemical control has highly expanded over the last 30 years in sub-Saharan Africa to reduce bio-aggressors on all crops. Pest management of fruits and vegetables by small farmers in sub-Saharan Africa have developed anarchically in a fuzzy regulation framework. Pesticide toxicity and excessive ap...


Bon, H. deHuat, J.Parrot, L.Sinzogan, A.A.C.Martin, T.Malézieux, E.Vayssières, Jean-François[Pesticide risks from fruit and vegetable pest management by small farmers in subSaharan Africa: a review]Pesticide risks from fruit and vegetable pest management by small farmers in subSaharan Africa: a review

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