Let me help you put this issue to rest… I have hated the fact that I wait for summer to come so we can enjoy the backyard and the summer came and we went outside and had to go back in because we were getting bit like crazy by too many mosquitos. I decided to invest in spraying my property. I tried a few different companies, starting with Mosquito Joe and then to another one. It seems like they all have salesmen and it’s a good business so a lot of companies jumped on the bandwagon. They just come in and spray some tan done stuff quickly and hope it works. Unfortunately none of it helped. Still had mosquito issues. I then got recommended to Mr. Mosquito. The guy, Nik, came over and was like a mosquito professor. He surveyed and looked around the property and not only explained spraying but more importantly I feel, gave me suggestions on ways to eliminate problem areas of mosquitos breeding. To top it off the price was little cheaper than the other guys I had used. I have been using them for the past 3 years and have seen a drastic drop in mosquitos. I CAN FINALLY USE MY PATIO!! My kids don’t come in all bitten up!!! You can see why I’m so enthusiastic lol Anyway, here is there info – I highly reccomend him especially because you deal with a knowledgeable person and all the stuff they spray are human and pet friendly and WORKS. Good luck !