I had huge colony of purple martins. About 40 units then i checked my bees and i didn't have many. After they left i took the houses down. I don't want martins any where near my bees. :no:Had been considering putting up a purple martin house--gotta rethink that now. Thanks for starting the thread!
I suppose so, but it's a matter of degree. Dead bees scasttered across the snow is one thing. A colony looking like this is quite another. This is TM for sure. I had 50 bees checked for Acarapis woodi. This colony was 95% infested at time of photo...February. Dead by spring."snow bees" can be an indication of Tracheal mite.