Cell builder colonies managements • Cell builder colony needs to be proper management and the same colony can be used to rear queen cells during entire season. • Cell builder colony made queen less by removing its old queen. Grafted cells are easily accepted within few hours after making it queen less colony; better acceptance if de-queened in the morning and first lot of cells given in the afternoon or  in the next day. • This colony being queen less needs to be sealed brood or nursing bees to maintain the sufficient population. For this purpose two sets of frames of brood (one with uncapped cells) are sufficient which should replace two brood less combs in the colony. • Frame containing grafted queen cups is…