Timing and distribution of attack on East African highland banana (Musa AAA- EA) by the banana weevil, Cosmopolites sordidus (Germar), (Coleoptera: Curculion- idae) was studied in a field trial at a farm 25 km NE of Kampala, Uganda. Weevils were released at three densities (5, 20 and 40 females p...
Abera, A.M.K.
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Gold, C.S.
,
Kyamanywa, S.
,
[Timing and distribution of attack by the banana weevil (Coleoptera: curculionidae) in East African highland banana (Musa spp.)]
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Timing and distribution of attack by the banana weevil (Coleoptera: curculionidae) in East African highland banana (Musa spp.)
Attraction of adult banana weevil, Cosmopolites sordidus to volatiles from banana pseudostem tissue and the synthetic pheromone Cosmolure+ presented singly or in combination, was studied in the laboratory and in the field. Olfactometric studies in the laboratory showed that 50 g of fermented bana...
Tinzaara, W.
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Gold, C.S.
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Dicke, M.
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Huis, A. van
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Ragama, P.E.
,
[Host plant odours enhance the responses of adult banana weevil to the synthetic aggregation pheromone Cosmolure+]
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Host plant odours enhance the responses of adult banana weevil to the synthetic aggregation pheromone Cosmolure+
Banana-weevil populations and associated damage were studied in adjacent plantations of highland cooking-bananas (cultivar Kibuzi) and introduced beer-bananas (cv. Kisubi) on a farm in central Uganda. Weevil density and mobility were assessed using mark and rerapture techniques. Residual banana c...
Beauveria bassiana is considered a virulent pathogen against the banana weevil Cosmopolites sordidus. However, current field application techniques for effective control against this pest remain a limitation and an alternative method for effective field application needs to be investigated. Three...
Akello, J.
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Dubois, T.
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Gold, C.S.
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Coyne, D.L.
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Nakavuma, J.
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Paparu, P.
,
[Beauveria bassiana (balsamo) vuillemin as an endophyte in tissue 3 culture banana (Musa spp.)]
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Beauveria bassiana (balsamo) vuillemin as an endophyte in tissue 3 culture banana (Musa spp.)
Nowakunda, K.
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Barekye, A.
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Ssali, R.T.
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Namaganda, J.
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Tushemereirwe, W.K.
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Nabulya, G.
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Erima, R.
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Akankwasa, K.
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Hilman, E.
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Batte, M.
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Karamura, D.
,
[Kiwangaazi (syn 'KABANA 6H') black sigatoka, nematode and banana weevil tolerant 'Matooke' hybrid banana released in Uganda]
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Kiwangaazi (syn 'KABANA 6H') black sigatoka, nematode and banana weevil tolerant 'Matooke' hybrid banana released in Uganda
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
The banana weevil Cosmopolites sordidus (Germar) is an important pest on bananas and plantains (Musa spp.). Population build-up is slow and weevil problems become increasingly important in successive crop cycles (ratoons). Yield loss results from plant loss (death, snapping, toppling), mat disapp...
Gold, C.S.
,
Ragama, P.E.
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Coe, R.
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Rukazambuga, N.
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[Selection of assessment methods for evaluating banana weevil damage on highland cooking banana]
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Selection of assessment methods for evaluating banana weevil damage on highland cooking banana
East African highland cooking bananas (Musa spp., AAA) are one of the most important staples in the Great Lakes region of Africa. It has been hypothesized that land use intensification within the region has led to decline in soil fertility, increased pest pressure, and decline in production. To d...
Gold, C.
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Speijer, P.
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Ssali, H.
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Karamura, E.B.
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Okech, S.
,
[Relationships between soil fertility, banana weevil and nematodes in the East African highland cooking banana in Ntungamo, southwestern Uganda]
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Relationships between soil fertility, banana weevil and nematodes in the East African highland cooking banana in Ntungamo, southwestern Uganda
The banana weevil, Cosmopolites sordidus (Germar), is a nocturnal insect that is not readily observed in banana fields. Knowledge on its distribution is essential for the design of management strategies that target the adult stage. Marked weevils were released into seven-year-old banana plots. Te...
Gold, C.S.
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Night, G.
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Ragama, P.E.
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Kagezi, G.H.
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Tinzaara, W.
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Abera, A.M.
,
[Field distribution of banana weevil (Cosmopolites sordidus (Germar) adults in cooking banana stands in Uganda]
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Field distribution of banana weevil (Cosmopolites sordidus (Germar) adults in cooking banana stands in Uganda
This paper reports results from a 6-year long-term fertilizer X banana weevil trial for highland banana in Mbarara, Uganda. The objective of the study was to quantify the effect of mineral fertiliser (100 kg N, 50 kg P, and 100 kg K ha -1 yr-1) on crop and economic performance and weevil pest sta...
Okech, S.H.
,
Asten, Piet J.A. van
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Gold, C.S.
,
Ssali, H.
,
[Effects of potassium deficiency, drought, and weevils on banana yield and economic performance in Mbarara, Uganda]
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Effects of potassium deficiency, drought, and weevils on banana yield and economic performance in Mbarara, Uganda