I can’t go outside for five minutes without one or more aggressively pursuing me, and trying to sting me. It’s very painful.
This really does work. I did a similar trap using a plastic gallon milk jug. Cut a square hole in the side, leaving about 2” of rim for the water. Hooked fish on the end of a string and used the lid to hold the string in place.
Had well over 100 dead yellow jackets within 24 hours.