#6. Washington, D.C.
“[Bedbugs] have been very constant for the past three to four years...I don’t know if there’s an increase,” says Stuart Harper, owner of Atek Pest Management. “We get between 50 to 100 calls for bedbugs a week… On a weekly basis we will see at least one unit where you have blood smears on the walls from residents trying to kill them with their bare hands or shoes. You’ll see them walking across the ceilings.” Harper has been working with Advanced Pest Engineering to monitor a colony of bedbugs to see how the pests will react to different conditions. “When we first got the colony, it went nearly four months before their first feeding. Out of about 100 bugs, about half remained and laboratory colonies are typically weaker.”