roach vs 70% isopropyl alcohol
If you have roach problem don't spray it with alcohol. I did and it never help. If you enjoy this video good, but I hope you are reading this. Go on to eBay/Amazon and look for "Syngenta Advion Roach Killer". It is a paste substance that you leave as bait for these foul insects.
They worked for me at the barbershop. I bought another for my ex because her home was also infested. It was bad and I want to see if this stuff really work. It did and they're bug free in less than a week.