Here in the USA, our legal option for the use of formic acid seems to be the gel form. Is this like the soft material mentioned by Dr. Nasr, or is it more like the MiteAway pad he uses? The Apicure literature mentions some effect on brood, but wasn't very specific about how great that effect might be. It would be nice to use a method that minimally affects brood rearing. In trying to decide whether to use formic acid gel this spring, I'm unsure how to relate what has been discussed about formic acid to what is legal here. Bill Morong