
It is illegal to sell, gift, transport or plant in Indiana under the state's Terrestrial Plant Rule, and it is the preferred host of spotted lanternfly, now reported across roughly 17 Indiana counties. Between the legal status, the brittle wood and the suckering, this is the one tree on this list where the professional answer is nearly always removal rather than management.
Large tree · On the hazard list · $400–$1,900 typical
Also searched as ailanthus, stinking sumac, Chinese sumac, paradise tree.