L. gmelinii seedlings were induced resistance by wounding.JA, MeJA, Z-jasmone and MeSA, which decreased the feeding selection of D. superans larvae.

• 机械损伤、茉莉酮、茉莉酸、茉莉酸甲酯和水杨酸甲酷均能诱导落叶松产生防御，明显减少了幼虫的取食选择。