Can someone advise whether mites and lice are still a problem in this very cold weather. I am worried about cleaning out the whole of my ark and spraying it with Total Mite Kill as I do the rest of the year because it is impossible get it dry again. At the moment I am just cleaning the poo out each day and topping up with wood shavings with some louse powder and diatom sprinkled into it - is this sufficient?