We've been using Mosquito Shield for the past 3 years since we moved to Marshfield. It was almost impossible to go out in our yard during the summer, especially in the late afternoon and evening. We live close to a marsh area and the mosquitoes were horrendous. We hired MoShield and have been very pleased that we have almost no mosquito problem at all. MoShield is very prompt to respond and their regular service is reliable.