Here is a video tutorial on hosting Mason Bees - https://www.youtube.com/watch?v=VQhg82f-OPI https://www.youtube.com/watch?v=VQhg82f-OPI You can start out simp

Here is a video tutorial on hosting Mason Bees - https://www.youtube.com/watch?v=VQhg82f-OPI https://www.youtube.com/watch?v=VQhg82f-OPI You can start out simple, but you might need to be more involved if you want to prevent the spread of parasites since they are more easily spread when all the mason bee larvae are in one place.