Yield loss in East African highland banana (Musa spp., AAA-EA group) caused by the banana weevil, Cosmopolites sordidus Germar

Rukazambuga, N.D.T.M.; Gold, Clifford S.; Gowen, S. R.

doi:10.1016/s0261-2194(98)00056-8

Cited by 82 publications

(49 citation statements)

References 4 publications

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“…High pest density can cause yield losses of up to 40-100% (Rukazambuga et al, 1998) and shorten plantation life span (Gold et al, 2004a). Cosmopolites sordidus adults live up to four years and females have a low fecundity (Gold et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Effect of age, female mating status and density on the banana weevil response to aggregation pheromone

Tinzaara¹,

Gold²,

Dicke³

et al. 2011

African Crop Science Journal

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The banana (Musa spp.) weevil (Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) is a major pest in East Africa causing yield losses of up to 14 metric tonnes per hectare annually. Laboratory and field experiments were conducted to determine whether the response of the banana weevil, Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) to its aggregation pheromone was influenced by age, female mating status and weevil density. Laboratory bioassays were conducted using a double pitfall olfactometer, while a bucket pitfall trap was used in field experiments. There was no significant (P>0.05) difference in response to pheromone between immature and mature weevils (males and females) in laboratory bioassays. Forty-day-old weevils had a stronger response to the pheromone than 10-day-old ones under field conditions. The response of unmated weevils to the pheromone was stronger than that of mated weevils, both in the laboratory and field. The percentage of unmated and mated weevils recaptured from 0 and 3 m were similar but significantly different from 6 m way from the pheromone baited trap. The response of the weevils to the pheromone was not significantly (P>0.05) influenced by its previous density.

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Section: Introductionmentioning

confidence: 99%

Effect of age, female mating status and density on the banana weevil response to aggregation pheromone

Tinzaara¹,

Gold²,

Dicke³

et al. 2011

African Crop Science Journal

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“…Although it attacks all types of bananas, including dessert and brewing, highland bananas and plantains, Musa paradisica L., also known as cooking bananas, are more susceptible Sikora et al 1989). The borers cause yield reductions by impeding sucker establishment in newly planted crops (McIntyre et al 2001), loss of plant vigour and reduction in bunch size (Rukazambuga et al 1998). The larvae of C. sordidus feed by boring or tunnelling through the plant, eventually causing corm decay by facilitating invasion by secondary organisms and leaving a mass of rotten tissue (Franzmann 1972;Gold et al 2001).…”

Section: Introductionmentioning

confidence: 99%

A Pheromone-Based Trapping System for Monitoring the Population of Cosmopolites Sordidus (Germar) (Coleoptera: Curculionidae)

Reddy¹,

Cruz²,

Naz³

et al. 2008

Journal of Plant Protection Research

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Abstract:The banana root borer Cosmopolites sordidus (Coleoptera: Curculionidae) is native to Malaysia and Indonesia but is found in nearly all banana-growing areas of the world. Studies were conducted to determine the pheromone trap efficacy, effect of shade on trap catches and to monitor the population of C. sordidus using pheromones in Guam. In Guam, pheromone traps were used to monitor the population level of C. sordidus. Before monitoring began, two basic studies were carried out, which established that pheromone-baited ramp traps positioned in the shade of the banana crop canopy caught significantly more adults than those placed in sunlight and that ramp traps baited with pheromone lures caught significantly more adults than did identical traps without pheromone lures. Ramp traps baited with pheromone lures were set up at each of 10 locations throughout the island in November 2005. Weekly counts were made of the borers caught by the pheromone traps.The data indicated higher population levels (>10 per week) in the northern region and low (<5 per week) to medium level (5-10 week) populations in the southern part of the island. These differences among sites were highly significant. Linear and quadratic effects of rainfall on the number of borers captured were statistically significant, but according to quadratic regression models, the significance was due to differences at just one site.

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“…They grow several banana varieties and make very little use of chemical fertilisers or synthetic pesticides [1,2]. Like in most banana-growing areas of the world, the banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a common pest in East Africa [3,4]. The weevil is nocturnally active [5] and attracted to the host plant by volatiles emanating from fresh and decomposing banana materials [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The weevil is nocturnally active [5] and attracted to the host plant by volatiles emanating from fresh and decomposing banana materials [6,7]. These weevils can live for two to four years [3] and have low fecundity [8]. The females place the eggs singly in chambers excavated at the base of the host plant, and the emerging larvae tunnel into the corm, pseudostem and true stem [5].…”

Section: Introductionmentioning

confidence: 99%

“…The females place the eggs singly in chambers excavated at the base of the host plant, and the emerging larvae tunnel into the corm, pseudostem and true stem [5]. The tunnelling activity leads to a reduction in the plants' water and nutrient uptake abilities, resulting in reduced plant size and vigour, toppling and snapping, lower number of suckers, delay in flowering, and thereby shorter banana stand life [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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A farmer participatory research approach to assess the effectiveness of field sanitation and regular trapping on banana weevil populations

Rannestad¹,

Maerere²,

Torp³

et al. 2013

Fruits

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A farmer participatory research approach to assess the effectiveness of field sanitation and regular trapping on banana weevil populations.Abstract -Introduction. Small-scale banana producers in Tanzania are facing constraints caused by the destructive activities of the banana weevil (Cosmopolites sordidus Germar). Many currently used methods of addressing the problem are ineffective or too expensive for local farmers to implement. Materials and methods. A combination of two integrated pest management (IPM) tools (regular trapping in combination with field sanitation) was tested at two farmer-managed sites (Bujela and Kyimo) and one researcher-managed site (SUA-Morogoro). Treated areas were surrounded by untreated control areas where no trapping and limited sanitation was done. Changes in population densities were estimated by the mark-recapture procedure and the Lincoln index. Results and discussion. After eight months, weevil populations in the cleaned and trapped areas had been reduced by 33% (Bujela), 33% (Kyimo) and 74% (SUA). The change in population sizes in the control areas differed greatly, possibly due to discrepancies in field management between farmers' and researchers' practice. Trap types, areas and sites affected the number of weevils captured. Disc-onstump (DOS) traps captured more weevils than corm disc (CD) and pseudostem (PS) traps. Weevils responded more strongly to traps in the clean area at SUA compared with the other two sites, probably because the more rigid sanitation practices at SUA meant that volatiles from the traps were less likely to be masked by volatiles from surrounding residues. Conclusion. Regular trapping with field sanitation can greatly reduce populations of banana weevils, but strict adherence to method execution is required in order to gain favourable results. Tanzania / Musa / integrated pest control / Cosmopolites sordidus / traps / pseudostems / corms / farmer participation / cultivation / weeding Recherche participative avec les agriculteurs pour évaluer l'efficacité de l'assainissement en champ et du piégeage régulier des populations de charançons du bananier.Résumé -Introduction. En Tanzanie, les petits producteurs de bananes sont confrontés à des contraintes liées aux activités destructrices du charançon du bananier (Cosmopolites sordidus Germar). De nombreuses méthodes actuellement utilisées pour résoudre ce problème sont inefficaces ou trop coûteuses à mettre en oeuvre pour les agriculteurs locaux. Matériel et méthodes. Une combinaison de deux outils de lutte intégrée (IPM) (piégeage régulier combiné avec un assainissement du terrain) a été testée sur deux sites gérés par des agriculteurs (Bujela et Kyimo) et sur un site géré par des chercheurs (SUA-Morogoro). Les zones traitées ont été entourées de zones témoins non traitées où aucun piégeage ou assainissement n'ont été faits. Les variations de densité de la population ont été estimées par marquage-recapture et par utilisation de l'indice de Lincoln. Résultats et discussion. Après huit mois, les populations de ...

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Yield loss in East African highland banana (Musa spp., AAA-EA group) caused by the banana weevil, Cosmopolites sordidus Germar

Cited by 82 publications

References 4 publications

Effect of age, female mating status and density on the banana weevil response to aggregation pheromone

Effect of age, female mating status and density on the banana weevil response to aggregation pheromone

A Pheromone-Based Trapping System for Monitoring the Population of Cosmopolites Sordidus (Germar) (Coleoptera: Curculionidae)

A farmer participatory research approach to assess the effectiveness of field sanitation and regular trapping on banana weevil populations

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