Re: removing all young larva before introducing grafts
I think we are clearly seeing that different methods can be made to work. I always make a point of having open brood in our cell builders as well, clearly it can be done without but the constant here is to have plenty of young bees and MP clearly has a process for that. The downside to having this open brood, of course, is that you must thoroughly check through each frame (and I do mean thoroughly) for rogue cells.
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