I wish I had caught it when it was an even milder case. Picture below is some of the five colony's more advanced frames!
In disgust I euthanized and burned several hives, boxes and all, until I confirmed it was not American foulbrood. At that time the antibiotics were still available without the Veterinary prescription and I dosed them with Oxy Tet. I sealed up 5 hives and put them in shed for several years but eventually buried the frames and scorched the boxes. I did not have it return in the 4 years since. Others have not been so lucky!Crofter that is a sad sight to see for sure, one of those evil necessities for sure.
Sorry for the loss.
His footnotes give another reference:Commercial operations clearly need safe and inexpensive fumigants that can treat pallets of supers, yet leave no residue. Dr. Pernal found that isopropyl alcohol, Apilife VAR, paradichlorobenzene, and drugstore 3% hydrogen peroxide were fairly effective (but that there was variation in susceptibility between strains of spores). I’ve spoken with Dr. Rosalyn James about her experiments with using ozone as a sterilant against other pathogens, and am myself currently working on setting up a small trial to test its efficacy against nosema spores.
Currier, IP, et al (2001) Deactivation of clumped and dirty spores of Bacillus globigii. Ozone Science & Engineering 23:285-294.
The understatement of the week is calling it a bit forward thinking! You are very generous.I think the statement made in post # 11 a bit forward thinkin as far as being practical or presently available to beekeepers. Did you note the price? I think 3 days exposure may have been needed to deactivate AFB. It was not determined what its effect was on nosema.
To further muddy this thread. This 2001 Australian report 01-051.pdf states that 10 minutes in wax at 150° to 160º Celsius will "render all AFB spores non-viable". Does not seem to mention any other disease or bee pest.I think the statement made in post # 11 a bit forward thinkin as far as being practical or presently available to beekeepers. Did you note the price? I think 3 days exposure may have been needed to deactivate AFB. It was not determined what its effect was on nosema.