《太平广记·卷四百八十·蛮夷一》
经过蜂山时，就点燃胡苏树的树枝，因为这种树烧出的烟能杀灭各种虫子。
经蜂岑，燃胡苏之木末，以此木烟能杀百虫。
When passing Bee Mountain, the branches of the Hushu tree were lit, because the smoke from this tree burning can kill all kinds of insects.