Coastal New England: what hole sizes for solitary bee home for natives in need?
Let me start off by saying that I know essentially nothing about bees. I was talking with a friend this morning about solitary bees and their benefits, and I want to make a house for them at my place too.
Trying to research online, a lot of the info seems to be from the UK, so I am looking for more local info to make sure I optimize things for the native bees in my area.
Also, if possible, I'd like to avoid specifically encouraging carpenter bees since they like to eat my house.
It seems like mason and leafcutters are the two most popular ones, and they prefer 8mm (5/16") and 6mm (15/64") respectively. Are there any other species I should specifically accommodate with differently sized holes?
Right now, I'm thinking I'll do rows of holes at 4, 6, 8, and 10 mm. How's that sound?
Here's the basic design I'm working with, I'm thinking I'll just drill a variety of holes in the face, then use the parchment lining method.