This is the second summer in our house and we have noticed that each summer there is a considerable amount of wasps in our backyard. There are large trees that are on the other side of our backyard fence and we we think most are making home in those trees. Also I have found several nests underneath the ceramic shingles on the edges of our roof. With the wasps in the backyard the kids are afraid to do any playing outside. Anyone have any tips or ideas on how to manage this problem?