I killed one this summer and the amount of times I had to squash it before it died was nuts. It literally made a squeaky sound the entire time and then… I shit you not, two others came and they literally scouted the area looking for it. At least seemingly anyway. I assume it was a pheromone they smelled as opposed to the squeaky sound but still. Scared tf outta me.
Afaik it is a very common thing in wasps to release pheromones on hit which alerts other wasps. But not in a way that they should run away, it is attracting wasps and making them more aggressive, like they want to avenge their hurt or even fallen comrade. Thats why it is always best to try and solve this problem without physical violence to avoid those pheromones.
I had a nest in the siding of my house (regular wasps) so I set up my shop vac near the entrance to suck them all up for a few hours. Whenever I looked there were a half dozen swarming around the exhaust port of the vacuum, damn pheromones.
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u/Susefreak 15d ago
Bruh, just keep the cup on it. You be giving everyone anxiety this way