University of Guilan Caspian Journal of Environmental Sciences 1735-3033 2024 02 04 Effects of ginger oil on the life of Rhyzopertha dominica (Beetles: Bostrichidae) 1 6 7502 10.22124/cjes.2024.7502 EN Estabraq Mahmood Mahdi Deprtment of Biology, College of Science, Tikrit University, Tikrit, Iraq Warqaa Latef Salman College of Applied sciences, University of Samarra, Iraq Marwan Q. AL-Samarraie College of Applied sciences, University of Samarra, Iraq Journal Article 2024 02 04 This study was conducted to investigate the effect of different concentrations of ginger oil on the roles of <em>Rhyzopertha dominica</em>.<strong> </strong>The results showed: With a concentration of 8% after 48 hours of treatment, ginger oil had the highest mortality rate for the second larval instar, reaching 86.7%, and the lowest mortality rate for the second larval instar, 16.7% at a concentration of 2% after 24 hours of treatment. The lowest death rate for females was 0% at a concentration of 2% after 24 hours of therapy, reaching 86.7% after 72 hours at a dosage of 8%. https://cjes.guilan.ac.ir/article_7502_aa3f573f7426c2797167a856ed9bcb6e.pdf