What It Catches Roughly a dozen species of yellowjackets throughout North America that are known to bite and sting people. The RESCUE! Reusable Yellowjacket Trap is designed to lure them all. Unique Features & Benefits Catches multiple species of yellowjackets. Double-chambered design prevents yellowjackets from escaping. Attractant lasts for weeks without daily maintenance. Won't trap beneficial honeybees! Durable plastic holds up in sunlight for seasons of use. Used and recommended by the United States Department of Agriculture as well as major U.S. zoos, parks, campgrounds, resorts and school districts. Clear plastic tube allows you to see the yellowjacket "body count". Where it's used When possible, the RESCUE! Reusable Yellowjacket Trap should be hung in a natural setting like a tree, or around the perimeter of an area where the insects have been observed entering. Hang the traps at least 20 feet away from outdoor activity areas like your patio, deck, campsite or picnic area - and at least 20 feet away from any known yellowjacket nests. When it's used Use the RESCUE! Yellowjacket Trap in the spring when queen yellowjackets emerge from hibernation, and in the summer and fall when worker yellowjackets are foraging for food.