I've tried until I feel like I'm going blind but I haven't been able to find any information anywhere about using colloidal silver to help bees with any type of illness. My husband makes it for our use and it is a wonderful tool for our family so I was curious about the bees. Last week (don't remember which day, have to ask Baby) we got into the hives and found 2 that looked pretty bad, both of them had looked really good the week before so we were concerned since usually things that happen suddenly are worse than a gradual onset. The population was way down, one was clearly queenless, and the brood was dead/dying in several frames. We also saw bees with very deformed shriveled wings. The first hive (we'll call it A) had gone from having a beautiful queen with an excellent laying pattern to queenless with a severely diminished population. They had some stores and still had a couple frames of brood that looked healthy. I argued with myself for awhile over whether or not it was worth trying to save because the population had decreased so much. We decided to steal a couple of queen cells (ended up using 3) from a hive that is requeening now and put them in the hive. Then because the situation looked so bad and we really didn't have much to lose by trying it we made a jar of syrup and added some colloidal silver and peppermint oil. The second hive (B) still has a laying queen but has all the same symptoms as A does but to a much lesser extent. We gave them syrup as well but instead of adding the silver to the syrup we simply sprayed a silver/syrup mixture onto the bees and equipment while we worked. There is a third hive that is a split from the first one that isn't showing any symptoms so they are being watched very very closely. I'll keep y'all posted as we watch to see what (if any) effect the silver has on the situation. I just thought it was worth trying.