I live in Saskatchewan, Canada. My raspberries plants look healthy - have had them for a number of years - each fall I cut the dead stalks out. They get mulched naturally by fallen leaves. The worms are very tiny, hard to see, but after washing and leaving them sit for awhile they come out - too many for my liking, and have to wonder how many are still in there that we are eating. Help? I really love to freeze & eat these through the winter, and they are producing now.