RESCUE!® Why Trap for Wasps, Hornets, and Yellowjackets. It effectively catches 18 species of stinging pests, including 4 species of paper wasps, bald faced hornets, European hornets, and 12 species of yellow jackets. This environmentally responsible trap uses no killing agents, allowing insects to die naturally. It includes a 2-week attractant kit and requires no extra food bait. Catch queens in spring before they build nests and workers from summer through fall. The double-chambered design prevents insects from escaping, while the durable construction holds up for multiple seasons. It will not trap beneficial honeybees.