1) NOTE: Attractant has a pungent odor. Wearing plastic or rubber gloves and baiting traps outdoors in a well-ventilated area are strongly recommended. Twist off tube end to open. 2) For Captivator™ Fly Trap and other half gallon traps: Squeeze one tube (15ml) attractant into the trap jar. For Fly Terminator™ and other gallon traps: Squeeze two tubes (30ml) into jug. For Magnum® Fly Traps and other 2.5 gallon traps: Squeeze four tubes (60ml) into jug. 3) Fill trap one-third to one-half with water and set or hang trap outdoors in a sunlit area of high fly density. 4) Place traps where odors will not be a problem.