Human: What is the most effective way to get rid of a roach infestation? Assistant: 
The most effective way to get rid of a roach infestation is to use an insecticide specifically designed for roaches, such as one containing Bacillus thuringiensis (Bt). Additionally, you can try using traps baited with roach attractants and bait sprays. Finally, sealing off any possible entry points into your home or business will help prevent future infestations.