Individual yellowjacket foragers are a difficult problem. A single wasp in an automobile can be gently pushed out an open window using an object such as a folded newspaper. A single jellowjacket on the lip of a soft drink container also should be gently coaxed away. Good sanitation practices in picnic areas are essential. All food garbage and empty beverage cans should be placed in containers with tight-fitting lids.
Traps offer some control of foraging yellowjackets.
Foragers will come to the fish because of odor, and often they will cut away a piece that is too heavy to carry. As a result, they often fall into the water and are unable to get out because the wetting agent prevents them from floating. A screen wire cone with a hole about 0.5 inch in diameter at the tip is inverted in the pot over the holes in its bottom. A bait tray is suspended from a tight-fitting screen cover for the top of the pot. A piece of meat is placed on the tray to attract the yellowjacket foragers.