I found this article while researching information on treatment free beekeeping.
Assessing delayed and acute toxicity of five formulated fungicides to Osmia lignaria Say and Apis mellifera
http://www.apidologie.org/index.php...=/articles/apido/abs/2005/03/M4090/M4090.html
Assessing delayed and acute toxicity of five formulated fungicides to Osmia lignaria Say and Apis mellifera
http://www.apidologie.org/index.php...=/articles/apido/abs/2005/03/M4090/M4090.html