I have to wait and see how things work on on the upcoming warm days. One day last week lots of wasps were on my deck. The day my house was sprayed was very windy and then it rained & snowed. I don't know how much actually got to the right place but we'll see. I also think whatever was sprayed looks like it stained my deck, I won't know until I turn on the water when it warms up and spray the deck. It looks lousy now. For sure I'll keep you posted on everything.