Field validation of senesced banana leaf extracts for trapping banana weevils on smallholder banana/plantain farms

Abagale, Samson A., Braimah, Haruna, Osafo-Acquaah, Samuel, Powers, Stephen J., Emden, Helmut, Birkett, Michael A., Pickett, John A. ORCID: https://orcid.org/0000-0002-1008-6595, Sanda, Umar I. and Vuts, József 2021. Field validation of senesced banana leaf extracts for trapping banana weevils on smallholder banana/plantain farms. Journal of Applied Entomology 145 (1-2) , pp. 26-35. 10.1111/jen.12838

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Abstract

Palm wine alcohol extract of senesced banana leaf material, Musa spp., was tested for its efficacy in open field trapping of the banana weevil, Cosmopolites sordidus in Ghana from June to August 2015. Modified pitfall and bottle traps were baited with either individual treatments, that is palm alcohol extract, C. sordidus aggregation pheromone or pseudostem or with combinations of extract plus aggregation pheromone or extract plus pseudostem. The combination of extract plus aggregation pheromone was able to lure more weevils into traps compared with the respective individual lures. There was a 2.1‐fold increase in mean catch per week when the palm alcohol extract was used in combination with pheromone compared with using pheromone alone, and a corresponding 2.6‐fold increase when the extract was used with pseudostem in traps. There was no statistically significant interaction between the palm alcohol extract (presence or absence) and treatment (pheromone or pseudostem), but the best combination for maximal catches of adult banana weevils was a combination of palm alcohol extract with aggregation pheromone. Management of banana weevils with attractive banana leaf extract has important practical applications in parts of the world where other management options are too expensive or commercial treatments are in short supply, but where leaf material is cheap and readily available for local use by smallholder farmers.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	Wiley
ISSN:	0931-2048
Funders:	Royal Society, Leverhulme Trust and BBSRC
Date of First Compliant Deposit:	11 December 2020
Date of Acceptance:	8 October 2020
Last Modified:	14 Nov 2024 19:30
URI:	https://orca.cardiff.ac.uk/id/eprint/136950

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