I lived in NE Mississippi for a few years and I didn't see roaches as a big problem. They were manageable. The mosquitoes bothered me more. They are HUGE... biggest mosquitoes I have ever seen. Every single day in the summer I wore bug repellent. I called it my "summer perfume". Also, fleas can get wayyyy out of hand if you have carpet. I had a friend who rented an apartment and moved out within a week because of fleas - you could see them jumping everywhere! Scary.
Although these pests are bothersome, I have to say the northeast mississippi is a wonderful place and at times I wish I had never left. Don't let the stories put you off too much

if you live there you learn to deal with it like everybody else and it just becomes part of your routine to spray for bugs, keep your pets protected, and know a brown recluse spider when you see one!