Take a gallon milk jug and cut an upside down V shape in the side 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.
Jam dissolved in water (sweet enough to attract the wasps but diluted enough to drown them) Fruit juice Beer Sweet Soda Pop Wine Maple syrup diluted with water Molasses diluted with water If you need protein baits: