Abstract:Strobilomyia spp. (Diptera:Anthomyiidae) are the most serious pests damaging larch cones and seeds in northeastern China. In order to better understand the effects of plant volatiles on larch cone flies, Strobilomyia spp.;turpentine, camphor, and syringa balsam of various concentrations were evaluated both in the laboratory and field test as respellent for larch cone flies.The field test was carried out in the seed orchard of Dahurian larch,Larix gmelinii, located in Jiagedaqi, Daxing‘an Mountain in nort...