I live in the Pacific Northwest and it gets colder here faster. What is the nighttime threshold temperature that you should start to winterize?
Also, I had a professional beekeeper and business man said that he applies miticide (basically pesticide for mites with formic acid) during the mid to end August just to be sure that his bees are covered because here we have a huge mite problem. Is this a good measure to do? Any thoughts? How much should I purchase for only two hives?