Do bates work on cockroaches?

Question

Or do I have to have them sprayed?

Answer 1

they can work but they will just kill the individual cockroaches, it would be better to get a monthly exterminator.  

Answer 2

assuming you are meaning the inside roach that lives in the kitchen cabinets and such.. professionally speaking baiting is the only approach to use for them.  if you have ever watched that show Verminators where they saturate the rooms with liquids then break out the actizol machine to "fumigate", I haven't done that approach in probably close to 15 years and the results are a lot better in the long run