How to make a wasp, hornet or yellow jacket trap from a 2 liter bottle. To keep the bees from getting in here (and keep them doing their good job!) just add apple cider vinegar. Bees don't like the sour, but wasps do.
Take a gallon milk jug and cut an upside down V shape in the side 2/3 way up on the jug. Press the tab in. Pour fruit juice 1 inch deep into the jug. Put the cap back on the jug and hang. Insects enter through the hole and can't get out.
How to trap and kill carpenter bees, wood bees, wasps, hornets and yellow jackets naturally.