3 Ways to Keep Roaches Away During Summer Out of the roughly 4,500 cockroach species, just 30 are household pests. Guess which group American roaches fall into? Yep, pests it is. And, they aren’t just any pesky critter; along with German, Australian, and Oriental roaches, American roaches are the top four most pesky cockroaches. While roaches in general are a nuisance, its the American roaches’ large size and agility that puts them on the top of the list. Like many pests, cockroaches love heat, and American roaches are no exception. With summer just around the corner, high temperatures call for American roach patrol. Be on the lookout for these large ...