In my garden I have several Sallow trees that are covered in blackfly. These are in turn producing copious quantities of honeydew which is acting as a natural sugaring site for dozens of moths every night. These are mainly common noctuids but amongst them are a sprinkling of less usual moths for my garden like Small White Wave and Magpie Moth. Yesterday morning my trap that had been left in this area overnight produced over 500 macros with 137 Flame Shoulders, 99 Common Rustics and 60 Large Yellow Underwings amongst them. Unfortunately for every moth that are sugaring on the honeydew there are half a dozen wasps doing the same thing. Consequently I had a large number of wasps in my trap which attacked several of the moths but also made inspecting the contents an unpleasant experience. Has anybody any suggestions on how to overcome the wasp problem other than cutting down the Sallow trees or stopping trapping until after the first frost?