Since this spore is found virtually everywhere, I went looking for where this stuff is found....
And it is a common problem pest for
grapes......
So, if you were to go to a wine vineyard, and get some of thier composed leaves, and poor this between your bee boxes, you might save your bees, if you have mights...
And I am thinking that if this works, the best place to put this composted material is between the 1st and 2nd brood boxes....
The bees clean this up, and move it out side and the spore is spread thru the hive....maybe not in the concentration that we could have but possibly enough to make a difference in your dying hive. .....