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Effects of essential oil components obtained by hydrodistillation of Ammi genus members (Ammi majus L., Ammi visnaga L. (Lam.)), which have important chemical and active components were investigated against two important storage pests; fig borer Cadra cautella (Walker) (Lepidoptera: Pyralidae) and flour moth Ephestia kuehniella Zeller (Lepidoptera: Pyralidae). A total of 23 and 14 components were detected in A. majus and A. visnaga, respectively, and the product yield was found to be 96.05%, 82.53%. Among them, the major components for A. majus are 2 heptadecanone, benzoic acid, 2 pentadecanone while for A. visnaga they are linalol, nonadecane, carvacrol. Essential oil of A. visnaga extended the adult emergence times in E. kuehniella and C. cautella while the increase in pupation time was found statistically significant only in E. kuehniella. A. visnaga essential oil reduced the adult life span in E. kuehniella at the highest dose while a decrease was detected in both doses applied in C. cautella. Adult weight and number of eggs decreased due to the application of A. visnaga in both insects. Also, alterations were observed in the adult emergence, pupation time, and pupal period. In E. kuehniella and C. cautella, adult life spans, weights and egg production of females showed statistically significant decreases depending on the application of A. majus essential oil. The findings obtained within the scope of the current study reveal that the essential oils of A. majus and A. visnaga species have the potential to be used in the control of storage pest insects. [ABSTRACT FROM AUTHOR]