With the drought I have had a lot of questions about feeding bees. This week I found that in one of my apiaries all 10 hives had started to eat their stored honey and they did not have any new nectar.
These hives will either need to be feed or moved.
As for how what and when to feed instead of reinventing the wheel check out Michael Bush great post at
http://www.bushfarms.com/beesfeeding.htm
Below is a video of me filling and installing a frame feeder.