Home Projects: Killing Roaches

If it's one thing I don't care for, it's roaches. Here in central Alabama, there are a lot of them. And sometimes, they get into the house.
So, it's time to kill them. I found a mixture that is supposed to do the trick:
1 part boric acid
1 part sugar
1 part flour
Mix all three together and you get the final product. (Don't mix this where you eat.)  If you have carpet or hardwoods, put this on something like aluminum foil, to protect your floor.
I set some of this mixture outside to test this out, and sure enough, I saw five roaches at one time of checking it, all on top of the mixture.  I read that it takes killing three generations of them to totally get rid of them inside (6 to 8 weeks).  Let's see how this works out.