It is urgent to look for new materials to control C. chinensis in an environmentally safe way. Previous studies suggested that plant essential oils and their constituents can be alternative sources for insect control, not just because they are selective, but also they can biodegrade to nontoxic products and have no negative effects on nontarget organisms and the environment (Isman 2006, Jiang et al. 2012, Liu et al. 2012).