What time and conditions are needed for artificially rearing queen bees?

When the new bees reared by the colony that year have completely replaced the old overwintering bees and the colony has entered its growth and expansion period with a relatively strong population, you can prepare for artificial queen rearing. In the north, it is best to rear queens in early summer when the daytime temperature is stable above 20°C and there is a nectar source, especially when there is an abundant pollen source and drones also begin to emerge one after another. In North China this is generally in May. This can ensure the quality of the queen bee, and also allows the early replacement of aging queens with new queens. Colonies with a queen from the current year will not undergo natural swarming. Use the new queens reared early to carry out artificial colony splitting; after about a month and a half of increase, they can develop into strong colonies and collect the mid- and late-season nectar sources. In early autumn, at the beginning of the last main nectar flow, rear queens; the new queen colonies can rear a large number of overwintering bees, which is beneficial for the safe overwintering of the colonies and the development of the colonies in the coming year. In the south, in the middle and lower reaches of the Yangtze River, it is better to rear queens during the blooming period of Chinese milk vetch. In short, to rear high-quality queen bees, the weather must be warm and the climate stable. During the mating period of virgin queens, the daytime temperature should be above 20°C, and continuous rainy weather should be avoided as much as possible; during queen rearing, there should be a good nectar source and sufficient pollen source in nature, and the breeder colonies and queen-rearing colonies should be given uninterrupted reward feeding every evening.