Rhyzopertha dominica a lesser grain borer is a primary beetle pest of stored grain in many regions of the world. Fumigation as a pest control method plays an important role in control and management of infestation of stored commodities worldwide. The study was conducted to control the Rhyzopertha dominica in Triticum aestivum (L.) (Poaceae) under modified atmosphere storage. The seeds and carpel extracts as well as the oil of the fresh and dried carpels were tested against the stored grain pest Rhyzopertha dominica under laboratory conditions. Five different concentrations of carpel and seeds extracts of Zanthoxyulum rhetsa Roxb DC (Rutaceae) were tested for their efficacy. Carpels and seeds extract produced high incidence of mortality and reduced the rate of development resulting in significant reduction in their population exhibiting insecticidal activity and seed protective effect to a promising level and can be opted as good alternatives to chemical pesticides.
