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The Black Coffee Twig Borer, Xyalosandrus compactus (Eichhoff) is a new but rapidly spreading pest of coffee and other plant species. However, knowledge of its pest status, damage and host plant species utilization in Uganda is still limited. To ascertain its spread and impact, a survey was condu...


Kagezi, G.H.Kucel, P.Mukasa, D.Asten, Piet J.A. vanMusoli, P.C.Kangire, A.[Preliminary report on the status and host plant utilization by the Black Coffee Twig Borer, Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae) in Uganda]Preliminary report on the status and host plant utilization by the Black Coffee Twig Borer, Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae) in Uganda

The coffee growing regions on the slopes of Mt. Kilimanjaro have become progressively warmer and drier over the past 48 years. The minimum temperature is the predominant climatic variable which influences coffee yields over longer-term climatic change. In contrast, the amounts of rainfall and in ...


Craparo, A.C.W.Asten, Piet J.A. vanLäderach, PeterJassogne, Laurence T.P.Grab, S.W.[The influence and implications of climate change and variability on Coffea arabica in the East African highlands: Mt. Kilimanjaro case study]The influence and implications of climate change and variability on Coffea arabica in the East African highlands: Mt. Kilimanjaro case study

In Uganda, highland banana yields (5-30 t ha-1yr-1) are low in comparison to potential yields (70 t ha-1yr-1) due to high pest and disease pressure, soil fertility decline, and poor management. Although it is generally accepted that soil exhaustion is a major cause of low and declining yields, th...


Asten, Piet J.A. vanGold, C.S.Wendt, J.Waele, D. deOkech, S.H.Ssali, H.Tushemereirwe, W.K.[Contribution of soil quality to banana yield problems and its relation with other banana yield loss factors]Contribution of soil quality to banana yield problems and its relation with other banana yield loss factors

A survey was carried out in 108 fields in Rwanda to identify constraints to banana productivity in three regions: Ruhengeri (young volcanic soils), Gitarama–Butare (soils derived from granitic rocks), and Kibungo (weathered soils from schistose materials). Data were recorded for the single cultiv...


Gaidashova, S.V.Germeau, G.Asten, Piet J.A. vanDelvaux, B.[Identification of constraints to banana production in three ecoregions of Rwanda]Identification of constraints to banana production in three ecoregions of Rwanda

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