I use 0.25 gram/gallon as a mold preventative. It also happens to coincide with a concentration of 0.44 mM thymol which is what was used in a 3-year study done in Turkey comparing its effectiveness with that of fumidil. I have never used it as a varroa treatment so I can't comment on that. I also use thymolated syrup when I mix my pollen patties, again as a mold preventative. Some have questioned how effective Thymol treatment is on Nosema since the results of the Turkey study have not officially been duplicated. I have chosen to use it over other mold preventatives in the hopes that there is some validity to that study. For a raging verified active Nosema infestation, it still seems that fumidil is the only treatment that provides a more verifiable immediate result.
Originally Posted by irwin harlton
"The UNKNOWN, huh? That would be SNORBERT ZANGOX over in Waycross."