In Uganda, banana (Musa spp) and coffee (Coffea spp) form the economic base for a big population of small-scale farmers and provide environmental protection. However, their production is currently declining. The two crops are grown in association as intercrops or adjacent monocultures but little ...
Ragama, P.E.
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Nankinga, C.
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Okech, H.
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Gold, C.
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Wetala, P.
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Asten, Piet J.A. van
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Nambuye, A.
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[Agronomic pests and economic factors influencing sustainability of bananacoffee systems of western Uganda and potentials for improvement]
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Agronomic pests and economic factors influencing sustainability of bananacoffee systems of western Uganda and potentials for improvement
A survey of plant parasitic nematodes in the major banana growing areas of Uganda was conducted in 1993. A total of 120 root samples were collected from 24 sites. Eight nematode species belonging to four genera were encountered. The most widespread species were Pratylenchus goodeyi (cob) sher and...
Kashaija, I.
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Speijer, P.
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Gold, C.
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Gowen, S.
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[Occurrence distribution and abundance of plant parasitic nematodes of bananas in Uganda]
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Occurrence distribution and abundance of plant parasitic nematodes of bananas in Uganda
Management of harvested (senescent) banana pseudostems has implications for efficiency of nutrient use for sole cropped as well as intercropped bananas. Two studies were conducted on aspects of nutrient flows from senescent pseudostems. Sixty one and 55% of the initial N and P, respectively, in s...
Wortmann, Charles S.
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Karamura, E.B.
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Gold, C.
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[Nutrient flows from harvested banana pseudostems]
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Nutrient flows from harvested banana pseudostems
Vuylsteke, D.R.
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Ortiz, R.
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Pasberg-Gauhl, C.
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Gauhl, F.
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Gold, C.
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Ferris, S.
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Speijer, P.
,
[Plantain and banana research at the International Institute of Tropical Agriculture]
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Plantain and banana research at the International Institute of Tropical Agriculture
Data are presented on the incidence and severity of (black and yellow) sigatoka leaf spots and Cladosporium freckle in different ecological zones of Uganda. Black sigatoka has become widespread since its arrival in Uganda in 1988. Sigatoka leaf spots were most severe in mid-elevation zones of cen...
Tushemereirwe, W.K.
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Gold, C.
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Speijer, P.
,
Holderness, M.
,
[Foliar diseases of banana in Uganda: results from a diagnostic survey]
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Foliar diseases of banana in Uganda: results from a diagnostic survey
Developemental threshold and thermal requirements for eggs of banana weevil, Cosmopolites sordidus Germar, were determined under laboratory conditions at constant temperatures of 15,18,25,27,30,32 and 34 °C and a photoperiod of 12:12 L/D. The duration of the egg stage decreased from 34.9 days at ...
Traoré, L.
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Gold, C.
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Pilon, J.
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Boivin, G.
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[Effects of temperature on embryonic development of banana weevil, Cosmopolites sordidus]
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Effects of temperature on embryonic development of banana weevil, Cosmopolites sordidus
The effect of covering post-harvest banana stumps with soil on banana weevil Cosmopolites sordidus (Germar) oviposition levels was investigated at three locations, Sendusu, Kawanda Agricultural Research Institute (KARI) and Ntungamo district of southwestern Uganda. In the first experiment oviposi...
Masanza, M.
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Gold, C.
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Huis, A. van
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Ragama, P.E.
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[Effects of covering highland banana stumps with soil on banana weevil Cosmopolites sordidus (Coleoptera: Curculionidae) oviposition]
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Effects of covering highland banana stumps with soil on banana weevil Cosmopolites sordidus (Coleoptera: Curculionidae) oviposition
Twenty five sites, representative of seven agro-ecological zones of enset (Ensete ventricosum) crops, were sampled between September 1998 and January 1999. At each site, five 1-2 year old enset plants were sampled to check for the presence of nematodes present in their roots. The predominant nema...
Bogale, M.
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Speijer, P.R.
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Mekete, T.
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Mandefro, W.
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Tessera, M.
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Gold, C.
,
[Survey of plant parasitic nematodes and banana weevil on Ensete ventricosum in Ethiopia]
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Survey of plant parasitic nematodes and banana weevil on Ensete ventricosum in Ethiopia
Among the major constriats to highland cooking banana (Musa spp. AAA-EA) production in Uganda is the high pests infestation levels. Most important are the banana weevil cosmopolites sordidus and a complex of plant parasitic root nematodes of which Radopholus similis is the most important. Clean p...
Paparu, P.
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Dubois, T.
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Athman, S.
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Kapindu, S.
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Coyne, D.
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Gold, C.
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Adipala, E.
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Mukwaba, E.
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[Merging biotechnology with biological control: banana Musa tissue culture plants enhanced by endophytic fungi]
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Merging biotechnology with biological control: banana Musa tissue culture plants enhanced by endophytic fungi
The effects of a leaf spot complex (including Mycosphaerella musicola, M. fijiensis and Cladosporium musae) and leaf pruning on plant growth and yield in highland bananas were investigated in a field trial at Kawanda Agricultural Research Institute. Results from the first ratoon crop revealed tha...
Tushemereirwe, W.K.
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Karamura, E.B.
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Holderness, M.
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Gold, C.
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Deadman, M.L.
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[The leaf spot complex on highland bananas in Uganda]
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The leaf spot complex on highland bananas in Uganda