We've been working with My Pest Pros for a couple of years, they come out monthly to spray for mosquitoes (and extra as needed). It's been a welcome relief to be able to enjoy the backyard without being attacked, and when we have needed additional treatments in between our scheduled dates, there have been no questions, no fees, they have just come out and done additional spraying. And we love Winston, he's wonderful - he even waters the tomato plants when he comes by!