How many times have you returned to your feeder after the summer to find a wasp nest full of red wasps in the funnel. Now what can I do to keep them out? This has been a problem for several years. I finally solved the problem. A baseball with an eye screw screwed in it and a sufficient length of string tied to the screw to reach an outside leg. Once the feeder runs out drop the ball in and walk away until Fall. Ever see a red wasp bench press a baseball??? Me neither. Lol