Ben Harden’s article has been published in several forms, the one that I have taken many portions of text from is the version that was published in Bee Improvement, Issue nine of Spring 2001, using the title “A simple method of raising queen cells”.
Ben runs a beekeeping equipment supply business in Ireland and is well known, he keeps bees himself and holds the NDB (National Diploma in beekeeping) as well as a raft of other beekeeping qualifications.
Ben Harden Method of Raising Honey Bee Queen Cells
An undeniable pleasure in beekeeping is handling a good colony of bees headed by a queen that you have raised yourself. Some beekeepers, unfortunately are deterred from queen rearing because they consider the procedures too complex. All to often the beginning beekeeper is told by instructors and books that queen Rearing is best left to more advanced beekeepers. The following is an easy to manage method of getting from a selected larva to a ripe queen cell.
The concept derives from a practice used by French royal jelly producers when employing queen right colonies. Gilles Fert and Harry Laidlaw describe very similar manipulations for royal jelly production and (queen) cell finishing.
The major advantage of this method is that it is a mere incidental manipulation of the colony chosen to start and finish the queen cells – any production colony is suitable for this purpose:-
There is no need to create a body of queenless bees which is inherently unstable.
The cell raising colony is as free to forage as it was before and its potential honey yield is not significantly affected.
If using a “queen rearing” kit to obtain the larvae and things go awry, there is no unnecessary disruption to what was to have been the cell raising colony.
The same colony can be used to provide the larvae and then rear them onwards into queen cells if so desired.
The French royal jelly producers use a double brood chamber with the queen excluder between the two brood chambers and with the queen confined to the lower box. At each routine inspection, frames of sealed brood are taken and placed above the excluder and once the bees have emerged the empty frames are put below again for the queen to lay in. When producing royal jelly the upper box is arranged with a frame feeder against the hive wall followed by a frame with pollen, a frame of young open (unsealed) brood, the frame of queen cells, a frame of open brood and sealed brood frames to fill the rest of the box. The royal jelly is harvested 3 – 3 1/2 days after the “grafts” were introduced.
The critical factors with this system are having most, if not all of a colony’s pollen, young larvae and the “royal” cells altogether above a queen excluder. Two multi frame dummies are made so as to occupy all of a brood chamber apart from a central space for four frames. (Five if a frame feeder is needed)For ease of manipulation two 3/8″ short bars can be placed on one side of each dummy. These spacers go against the brood chamber wall to give an all round bee space.
The function of these dummies is merely to fill up space and as their sojourn in a hive is for a mere 10 to 11 days at a stretch they do not necessarily have to be made to precise dimensions. It is of course essential that they fit within a brood chamber and once they are in place do not project out!
There is the need to “familiarise” the bees to the components before use so 2 to 24 hrs before the expected introduction of the larvae, the two multi frame dummies, a spare empty brood chamber, three spare brood frames (preferably of drawn comb) and the cell bar frame are taken to the chosen production colony. Which now becomes the cell raiser. The spare brood chamber is to be placed above the queen excluder and below the supers with the dummies one on each side. The empty “cell bar” frame is put into the four (or five with a feeder) frame space having been painted with syrup. The bees will clean off the syrup and thereby “familiarise” the frame and cell cups in readiness for use. The three spare frames can either be inserted in the space left for later rearrangement when the larvae are introduced or they replace two frames of pollen and one frame of young larvae removed from the lower brood chamber of the rearing colony there and then it is not necessary to find the queen of the production colony. To ensure she is below the excluder merely shake the frames free of bees on removal. Worker bees will quickly come up through the excluder to tend the brood in these frames. The box with the dummies is set up to have a dummy, a frame of pollen, the frame of young larvae, the “cell bar” frame, a frame of pollen and lastly the other dummy. The cell bar frame should be next to the pollen frame that has the most pollen. This sequence must be used when the larvae are introduced and then queen cells will be drawn. The raising of queen cells in such a situation is observed in practice. The precise mechanism which permits this is not fully understood. There is some indication that the building of queen cells is inhibited by the secretions of the queen’s Amhart glands, which are found in the last tarsal segments, this is called “foot print” pheromone. The queen excluder of course prevents the queen access to the cell bar frame so no foot print pheromone is present there. Once the queen cells are sealed the raising colony does not swarm. This is also seen in traditional queen right cell finishing colonies. The queen cells are treated in a like manner to supercedure cells although the governing factors may not be identical. My practise is to leave the hive stack arrangement unchanged until the queen cells are ready for transfer to an incubator or mating nucs eleven days on (fifteen days after the egg was laid). If desired the brood chamber with the queen cells could be placed higher up the stack once the queen cells had been started. Normal routine inspections of the full brood chamber should continue and the three full frames in the “cell rearing” box should be examined in case a queen cell has been raised on an older larva than those provided in the grafted cups. If allowed to hatch such a queen would kill her younger rivals… The ones you actually want and add a complication with a free virgin above and a laying queen below the queen excluder.
The production colony goes on functioning as before. The given cells are in a position where the house bees must pass by and the royal jelly producers come to, in order to get the pollen necessary in their diet. The dummies are a physical presence which concentrates the young bees into the frames around the cell bar frame. The net result is a good acceptance and the building of fine queen cells. Doolittle raised his queen cells above an excluder of a queen right colony. Some breeders and /or authors decry queen raising in a queen right colony. Consider however that is how the bees do it!
Little is written about “queen right” cell raising and that might be because it does not suit the large volume queen producers whose methods we tend to emulate. When using a “cell bar” frame carrying 20 grafts my success rate has been better in this queen right configuration as compared with a queenless cell raiser. This method does not have boxes “boiling” with bees as standard texts recommend, it is after all a production colony with ample space provided. Liu showed that it only requires 200 worker bees of the correct age to raise a fully formed queen. Any reasonable production colony would have many such bees, certainly plenty to raise sufficient queen cells for the majority of beekeepers.
To summerise the method… If a production colony’s pollen supply, a frame of young brood and a frame of “grafts” are placed above the queen excluder and below the supers the larvae in queen cups will be reared to become queens. When using a single brood chamber the incorporation of multi frame dummies in a second, temporary, brood chamber above the queen excluder gives the right environment for raising queen cells without any significant extension of the brood chamber and also this configuration does not adversely effect the potential honey yield of the colony concerned.