Reduction of banana weevil populations with pseudostem traps

A. M. Koppenhõfer, Seshu K.V. Reddy, R. A. Sikora

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

One‐week‐old traps made from split banana pseudostems were 1.5–1.7‐fold more attractive to adult banana weevils than 2–3‐week‐old traps. In one experiment, all available pseudostem material was used for trapping, and weekly collecting of weevils over an 11‐month trapping period led to a 50% reduction in weevil catches in one field. In another field with a lower initial weevil density the trapping did not reduce weevil populations. In another experiment, the effect of intensive use of pseudostem traps and daily collecting of trapped weevils was estimated by a mark and recapture method over a period of 6 weeks. Reductions in weevil densities were calculated using a modified version of the Lincoln‐Index. Weevil populations were reduced by 48.5% after 3 weeks and by 62.5% after 6 weeks. Trapping efficiency declined during the experiment and appeared to be related to weevil population densities. This cultural control system may be effective in weevil control in small‐farm situations where labour availability is not a limiting factor.

Original languageEnglish (US)
Pages (from-to)300-304
Number of pages5
JournalInternational Journal of Pest Management
Volume40
Issue number4
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Insect Science

Keywords

  • Banana weevil
  • Cosmopolites sordidus
  • Lake Victoria
  • Mark and recapture
  • Pest reduction
  • Pseudostem traps

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