Wondering what we should do. There are caterpillars around on the house. They are some type of moth. The problem is that we recently got the house power washed and painted in order to sell it. The caterpillars are now making silk cocoons underneath the fashias/gutters and corners. Should I call an exterminator to kill them? Or when they turn into moths will their cocoons easily come off? I hate to kill bugs if they are not bothering me, but it may affect selling our house--which is extremely important right now.