Home made cockroach eliminator

Cont ray to what some folks think, cockroaches can invade even the cleanest of houses. If they've moved into your domain, get em outta there with this simple formula
4tsp. of borax
2 tsp. of flour
1 tsp of cocoa powder

 mix the ingredients together and put the mixture into jar lids set them in your kitchen cupboards, behind the refrigerator, and any place Else where the roaches are roaming but be sure that you put em in places where children or pets can't get to them.