wasp

[Roy]

I am having a really bad problem with wasp's. I have at least 20 to 30 at a time, (all day long) fly in and get water. The nest is not on my property. I have tried BUG BEGONE, and some kind of Aclie product also. No one has any suggestions to my problem. I really need some help with this. I would like something I could add to the water to kill them being I can't find the nest.