I've noticed that after the first or second generation that Raid™ has no effect on them. They seem to be immune to it.

I left a melon rind in the sink last week with a strip of flypaper over it and it really glued them down (yuk yuk).

TSC still has flypaper but made in China, of course. Other than that, they will be gone in another month or two when their life cycle is over.

←Pa