Non-native bees discovered in Canada may pose serious threat to native mason bee populations December 8, 2022 Home Explore The Naturalist's Journal Non-native bees discovered in Canada may pose serious threat to native mason bee populations Share FacebookTwitterEmail The non-native mason bees (Osmia cornifrons and Osmia taurus) originate from northern Asia and were introduced to North America more than 50 years ago as crop pollinators.
