Potential of Solid Gel Formulation of Kaffir Lime Peel Extract Against Postharvest Pest Sitophilus Zeamais on Stored Rice

Abstract

Maize weevil, Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) is a primary pest on maize, rice, wheat, sorghum, and other cereal grains. The purpose of this study was to determine the effectiveness of using kaffir lime peel extract in solid gel formulation as a plant-based insecticide. This study used five treatments, untreated (control), 0.5%, 1%, 1.5%, and 2%. The results of this study are the treatments tested had effects on adult mortality and repellency. The 2% concentration showed the highest adult mortality and repellency. The major volatile organic compounds contained in kaffir lime peel were α-fernesene, α-sinensal, D-citronellol, and citronellal.

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