Journal of
Stored Products and Postharvest Research

  • Abbreviation: J. Stored Prod. Postharvest Res.
  • Language: English
  • ISSN: 2141-6567
  • DOI: 10.5897/JSPPR
  • Start Year: 2010
  • Published Articles: 166

Full Length Research Paper

Investigating the periodic physical disturbance method in Ghana to control adult Sitophilus zeamais in maize storage

Bernard Darfour
  • Bernard Darfour
  • Radiation Technology Centre, Biotechnology and Nuclear Agriculture Research Institute, Ghana Atomic Energy Commission, P. O. Box LG 80, Legon-Accra, Ghana.
  • Google Scholar
Kurt A. Rosentrater
  • Kurt A. Rosentrater
  • Agricultural and Biosystems Engineering Department, Elings Hall, Iowa State University of Science and Technology, Ames, Iowa 50011, USA.
  • Google Scholar

  •  Received: 21 March 2023
  •  Accepted: 31 August 2023
  •  Published: 30 September 2023


The maize weevil (Sitophilus zeamais) is an important cosmopolitan pest and the most detrimental insect of stored maize. This study aimed to investigate the efficacy of the periodic physical disturbance method on S. zeamais mortality. The potential adoption of the technology in Ghana was also considered. Farmers loaded 20 L buckets with maize grain and S. zeamais, non-hermetically. The physical disturbance was applied to the buckets twice a day for 30, 60 and 90 days. S. zeamais mortality was determined based on homogenized samples, and the analysis was done with one-way ANOVA. Generally, the physical disturbance method did not significantly cause S. zeamais mortality.

Key words: Periodic physical disturbance, Ghana, maize grain, Sitophilus zeamais, mortality.