I remember a few years ago when kudzu bugs first showed up. There were swarms of them, and I remember for a few weeks I'd get them on me when walking from the car to the front door.

Then the next year I thought they'd all vanished, until I looked at a kuzdu vine and noticed it was covered in them. It's almost like they didn't know where the kudzu was when they showed up, but now that they've found it that's where they stay.