If you missed yesterday's Deadout Analysis Workshop (or if you'd like to view it again) we've posted the recorded presentation online for members to view. Login to the site and look under the Calendar menu for Past Workshop & Events Recordings.
Presenters Fred Putnam and Andrew Munkres describe many of the factors and causes leading to the loss of overwintered colonies. The workshop includes photos giving you the ability to diagnose the causes and adjust your management for next winter to improve survival. (Also see the updated VBA Deadout Diagnosis Guide.)