Molds and fungi are a natural part of the composting process, helping to break down the food waste. Vegetables may sprout in your bin because of all the nutrients present. These things will eventually be consumed by the worms and other organisms, but you can keep the mold or sprouts out of sight by covering them with bedding. When it gets colder, your worms will slow down, and will not be able to digest as much food waste. You will most likely need to cut back on the amount of food waste you feed your worms between November and February.
Red worms can survive cold winters outside if protected by bedding in a worm bin.
Vermicompost is extremely nutrient rich and helps soil hold moisture. Use your vermicompost sparingly, sprinkling some in the bottom of seed rows or transplant holes, or using as top dressing for house plants. Mix it with peat or other materials to make your own potting soil. This will get rid of most of the critters found in the compost. For more information refer to the book Worms Eat My Garbage , by Mary Appelhof.