That seems a little harsh. I have an electric fly-swatter for the mosquitos we get hereabouts but I'm not out to exterminate them. Hornets on the other hand. Completely useless creatures as far as I've been concerned ever since I got stung about 40 times once. And no I wasn't asking for it but...well, I'll have to tell you about it sometime.
Yellowjackets have been particularly bad around here the last few years. I’ve invested in electric swatters to fight them off.