Re: Is it possible to graft too young?
Thanks LJ. I am sure that many of us attempt to graft the fresh hatched larvae and find poor acceptance. I think second instar is a better size and that is what your graphic depicts. New research regarding the caste determination seems to indicate that the diet of the queen is identical to the diet of the worker bee at least in the beginning and quantity is what makes the difference. A one day old larva swimming in RJ is much easier to graft and will make a good queen IMO.
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.