Haha I don't know where yours came from. All I know is that last winter we had a long wet spell when I couldn't burn anything and all the ashes washed away. In about 6 weeks, they were getting a few mites. Waiting a few days till the wood dried out some, and lit the fire. Next day, they had ashes to dust in and I haven't seen any on them since. Never had to powder them or anything.It would be hard on the skin. In a nest box, where it would settle down under the top layer of nesting stuff, sounds pretty good though. Then again, might be a reason we don't use it today. Mine dust in wood ashes all the time and unless it's been a long while since I've been able to supply them with any, they just don't get mites.
Where did mine come from then? lol I just was on Amazon and finally ordered Neem Oil and will use it on the roosts to make sure the buggers don't come back as requested by Beekissed blog. I just didn't realize there was so many different ways to buy Neem, wow but I got the true Neem oil and will mix it with a tiny bit of soap to make sure it sprays good. Thanks for all the info.