> essentially endless reservoir of new roaches We have a similar problem with box-elder bugs. About 3 years ago there was a massive explosion of them statewid

> essentially endless reservoir of new roaches We have a similar problem with box-elder bugs. About 3 years ago there was a massive explosion of them statewide and now we have thousands coming into the house every fall and staying until summer. They don't seem to live very long, but reproduce rapidly and since we have a lot of box-elder maples on the property, among many other trees, there's a constant supply of them. They're harmless, but ugly and annoying as hell and so far impossible to get rid of.