Hack and squirt 44% Triclopyr done for the front yard, going to do the back yard tomorrow. Actually took way less time than I thought it would. Will watch for new growth next spring. If there's no new growth by the end of summer, I'll fell the Ailanthus. If there is new growth, I'll reapply at the end of next summer and cut down the next.

I have no issue identifying Ailanthus, but even someone who had never seen one could do it if you told them "They're the ones covered in Spotted Lantern Fly".