The discussion of wasp nest in pitot tube prompts me to offer a method of controlling "mud dauber" wasps that has worked for me. I put out a pan of water with insecticide in my hangar (works outdoors also). Doesn't work very well during rainy season; but when my water is the only/easiest water source they use it and die. Don't have a scientific method of determining how much insecticide but about a teaspoon is what I use.
Dan Caliendo Ercoupe 3658 Mach 0.4
