Cowpea weevil bioassay: A simple prescreen for plants with grain protectant effects

M. O. Fatope, A. M. Nuhu, A. Mann, Y. Takeda

Research output: Contribution to journalArticle

32 Citations (Scopus)


Peasant farmers in northern Nigeria indigenously use various plants to protect cereals and legumes against pest damage during storage. We have developed and employed a simple bioassay technique to assess plants for their ability to protect cowpea from damage by weevil during storage. Of the 10 plants screened, Hyptis suaveolens Poit. (Labiatae) and Sphenoclea zeylanica G earth (Sphenocleacea) showed the best protectant effects after 4 months. The details of the bioassay procedure used and the results obtained are reported.

Original languageEnglish
Pages (from-to)84-86
Number of pages3
JournalInternational Journal of Pest Management
Issue number2
Publication statusPublished - 1995



  • Cowpea
  • Grain protectant
  • Storage pests
  • Weevil perforation index

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Insect Science

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