Field Validation of Senesced Banana Leaf Extracts for Trapping Banana Weevils on Smallholder Banana/Plantain Farms

A - Papers appearing in refereed journals

Birkett, M. A., Osafo-Acquaah, S., Powers, S. J. and Pickett, J. A. 2020. Field Validation of Senesced Banana Leaf Extracts for Trapping Banana Weevils on Smallholder Banana/Plantain Farms. Journal of Applied Entomology. https://doi.org/10.1111/jen.12838

AuthorsBirkett, M. A., Osafo-Acquaah, S., Powers, S. J. and Pickett, J. A.
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, i.e. 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 to 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 to 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.

KeywordsMusa spp; Cosmopolites sordidus; Ghana; Lure; TAL trap; Voltic trap
Year of Publication2020
JournalJournal of Applied Entomology
Digital Object Identifier (DOI)https://doi.org/10.1111/jen.12838
Open accessPublished as green open access
FunderBiotechnology and Biological Sciences Research Council
Royal Society-Leverhulme Trust
Funder project or codeChemical Ecology and IPM for the banana weevil in Ghana
Supplemental file
Output statusPublished
Publication dates
Online12 Nov 2020
Publication process dates
Accepted08 Nov 2020
PublisherWiley
ISSN0931-2048

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