Brood loss has been indicated as a possibility when using Formic acid as a miticide. Since I have used this acid as a treatment for low level varroa mite control (my colonies, as last year are showing a low level of brood presence at this period and temperatures have been near perfect), I would be most grateful for any information on what Formic acid damaged brood looks like. Has it any particular characteristics? Thanks in advance, Peter ****************************************************** * Full guidelines for BEE-L posting are at: * * http://www.honeybeeworld.com/bee-l/guidelines.htm * ******************************************************