Never replied to this - sorry. I would use untreated wood. The treatment may be toxic to the bees.
Tonya, Glad it arrived! I hope some grow! Last year I stuck about a dozen cuttings of similar size into my wine-barrel planters among strawberries chilis and lettuce/radish/onions. Almost all of them grew. Some may not have survived this winter tho. The plum seeds would be ideal, will give me something to play with and maybe eat someday!
Resurrected this post. Thinking about more than mason bees this year. Honey bees are much more complicated, and there is expense involved. Some times that's the good thing about a project. A good project can bring about blissful forgetfulness about the world around us.
Mason bees are compatible with honey bees. They get along without conflict. I've been housing mason bees for about 6 years. This winter is s good time to get out the drill and some pieces of wood and make new houses.
Planting for the bees - more mints. This fall I planted a linden tree - from what I've read, bees love linden flower. We have some wild cherries. In the Spring, those blossoms are covered by mason bees. Plus multiple fruit trees, which are pollinated by bees and which bees benefit from greatly.
We are planning a wildflower area where there is currently some lawn. Not planned for bees, but it will fit in with the bees, perfectly.
Doubtless, will post more as time passes. Flowers - and therefore, vegetables, fruits, and most of the trees and bushes that we grow - co-evolved with pollinating insects. They are part of the same system, and they need each other.
Here's a modern drawing of the honey bee anatomy. From bees-online.com
Such a small creature to be so complex. Add to that, their complex social structure and communication strategies. A lot in a small package.
You give me a new perspective on bees. I will be more respectful of them in the future.
Didn't know about Mason Bees. I may have seen some and assumed they were flies. Sounds like they're good in the city. What is the optimum length of their tunnels?
"I am writing with concerns about the role that neonicotinoid pesticides like clothianidin may play in the growing phenomenon of Colony Collapse Disorder and the threat that these massive honey bee die-offs pose to both the future of the species and to our food supply."
~ Dr. Steven Bradbury, Director of the Office of Pesticide Programs, EPA
Here two helpful sites that may help.