MD State Apiary Inspector Cybil Preston would be the default go-to contact in MD. The "2EE exemption" simply permits the application of oxalic acid in a specific alternative manner that is not allowed by the label, but is not specifically prohibited by the labeling. Here's the "main label" (scroll past the letter): https://www3.epa.gov/pesticides/chem_search/ppls/091266-00001-20151013.pdf https://tinyurl.com/2kbf45w8 Here is last year's supplement from Betterbee: https://www.betterbee.com/images/ApiBioxalSupplementalLabeling.pdf https://tinyurl.com/2p9a6zra Note that the "instructions for use" are... vague. *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html