They spread diseases like mites to the wild bee species chiefly, as well as out-competing them for food.
Details are in the parent comment and in the article but if watching a video is more captive of your attention here's a report on Deutsche Welle which I found pretty good and more to the point. [1]
Details are in the parent comment and in the article but if watching a video is more captive of your attention here's a report on Deutsche Welle which I found pretty good and more to the point. [1]
[1] https://www.youtube.com/watch?v=VSYgDssQUtA