Simple, safe and effective solution to wasps, yellowjackets and hornets invading your space. Hang this deterrent and these territorial insects will detect an existing nest and flee to another area. Wasps will generally not build their nest within 200 ft of another nest.
I bought my first package of these at the local market on a whim. That was 5 years ago. Now, I am buying replacements because I now know they work.
It took some experimentation the first year, because placement is key. Hang these under your eaves or patio cover where they will not get wet -- they are made of paper. My experience says that wasps will not start a nest within a 50-foot line of sight of one of these fake nests. They will, however, build a nest around a corner. I have a detached garage and have been able to figure out placement so that both buildings have remained wasp-free the past 4 years.
The only downside is that the color fades after a few years. My 5-year old fake nests are now blue and the paper is becoming increasingly fragile. 5 years of being wasp-free for only $9 seems like a bargain to me.