[dice]

[humidity vs blossom bagging]
I was thinking you could put dehumidifier of some kind in the
bags. 4 mesh Drierite would stay in there without falling
out. I don't know if it would last more than a day, though,
before it was saturated in your humidity, requiring you to
remove the bags, replace the Drierite, etc. (It can be
reconditioned in an oven.)

Kind of a hassle, but you only need to do it until you see
fruitset.