In recent research, the USDA folks found, “that significantly more stink bug adults and juvenile bugs, called nymphs, were captured in the baited black pyramid traps than in other traps. The researchers also found that more adults and nymphs were captured in a trap placed on the ground than in a commercially available trap hung from a tree limb.”
Bottom line – use black triangle shaped traps and put them on or near the ground.
It was also found that once you got south of Pennsylvania, stinkbugs tended to produce two sets of bugs a year instead of just the one found in more northerly areas. This of course means that if you live in warmer areas (Maryland etc) then you’ll likely have to run controls all summer long for this pest.
The original article is here