How to manage China bees in spring?

After the spring, as long as bees are not short of honey, the management of Chinese bees is mainly based on external insulation. Because the outside temperature is still unstable, you can add internal insulation to raise bees after rain and solar terms, and you should also pay attention to feeding sugar water and pollen. At this time, heat preservation is the most critical, and it must not be over-heated or under-heated, so it is appropriate that there is no bee fan at the door of the nest.