Brood patterns Healthy brood patterns are easily recognized when looking at capped brood. Frames of healthy capped worker brood normally have a solid pattern. Cappings are medium brown in color, convex and without puncture cappings. While the developmental stages are similar, they do differ in duration. Unfertilized eggs become drones, while fertilized eggs become either workers or queens.
Nutrition plays an important part in caste development of female bees.
Developmental stages of the three castes of bees. Comb of sealed worker brood with drone cells in the lower left corner and a sealed queen cell in the the lower right corner.