Interesting because I read here on this forum that powdered sugar dusting suffocates the larvae. I dusted my hives for 2 years with powdered sugar and it worked really well, but stopped doing it for several reasons, one was the thought that the larvae were in harms way.
What is the truth??
Thanks for sharing all the information
After a sugar dusting a hygenic pull of uncapped brood can be observed can be observed. So, yes, there is a small amount of brood loss as a direct result of a sugar shake. It can also be surmised that some of the pulled brood might have had mites taking up residence within there cell at the time the shake was preformed. Mites attempting to move off of dusted bees into open brood cells either fall to/through the bottom board, are caught by the bees and removed, or successfully make the transfer where a given percentage will be removed when the dusted brood is also removed.
The question that must be answered by the beekeeper, is the loss of some brood worth the offset in mite population.