This article was originally published in November 2013, but contains seasonally relevant information. In other words - It is time to treat your bees for varroa mites.
"You need to be doing something proactive to deal with mites whether you treat or not." (paraphrased) Kaymon Reynolds - treatment free beekeeper for 10 years.
This post is intended to present the available options for varroa mite management in as factual and unvarnished form as is possible