. Maybe it's so you know which trees to avoid? I haven't tested this out yet and I'm not sure if I can because it's impossible to tell which trees have wasps and which don't.Here’s a random thing I never knew about but my partner told me:
If the first tree you shake has a wasp, and you don’t shake any more trees, the wasp will be in the same tree the next day. Same if the first two trees you shake have wasps, they’ll be in the same trees tomorrow.
What is this good for? Unclear!