Chemical Composition and Insecticidal Activity of Origanum syriacum L. Essential Oil Against Sitophilus oryzae and Rhyzopertha dominica

Authors : Tunay Karan, Seyda SİMSEK, Ilyas Yildiz, Ramazan Erenler

Pages : 87-93

Doi:10.21448/ijsm.404114

View : 15 | Download : 8

Publication Date : 2018-07-05

Article Type : Research Paper

Abstract :Origanum genus belonging to the Lamiaceae family is aromatic and medicinal plant. It has been used in many countries for medicinal and pharmaceutical purpose. Aerial part of the Origanum syriacum L. was dried at shade. The essential oil was generated by steam distillation and compounds were identified by GC-MS analysis. γ-terpinene insert ignore into journalissuearticles values(26.7%);, thymol insert ignore into journalissuearticles values(26.6%); and carvacrol insert ignore into journalissuearticles values(22.9%); was detected as the mail constituents. The essential oil was tested for insecticidal activity against adult of Sitophilus oryzae insert ignore into journalissuearticles values(L.); insert ignore into journalissuearticles values(Coleoptera: Curculionidae); and Rhyzopertha dominica insert ignore into journalissuearticles values(F.); insert ignore into journalissuearticles values(Coleoptera: Bostrychidae); using fumigation method. Essential oil revealed the excellent fumigant effect on R. dominica adults with a median lethal concentration insert ignore into journalissuearticles values(LC50); value of 0.124 µl/insect and 0.107 µl/insect for 48 h and 72 h respectively. LC50 values of S. oryzae were found as 0.173 µl/insect and 0.135 µl/insect for 48 h and 72 h respectively. As a result, essential oil of O. syriacum has a potency to be a natural insecticide.
Keywords : Origanum syriacum, Insecticidal activity, Fumigant toxicity, Essential oil