Oh yes. I had a lovely conversation with an exterminator the other day (now if that doesn't sounds like an oxymoron, I don't know what does!)

We were both judging 4H entries for the local county faire, I in home management, he in etymology and we got to chatting about bugs, like ya do. He confirmed that boxic acid works for roaches but not spiders (they don't clean their legs) and that talcum powder kills ants. Woot!