While I have been honey beekeeping for a number of years this year was my first attempt to raise native Blue Orchard Mason Bees in our garden. Also known as Osmia Lignaria it is a major native pollinator in our area of the world. They make nests in reeds or natural holes and utilize mud to space their cocoons. This bee is a particularly important spring fruit tree pollinator for us.
Orange Rumped Bumble Bee |
I found that this method did not work for me completely and possibly it was because of the type of sand I used. After the process the cocoons were still covered in debris.
To finish the cleansing process I soaked the cocoons in a 5% solution of bleech and gently scrubbed with an old tooth brush.
P.S. After a few years of keeping mason bees I have evolved to making my bee houses by simply drilling 3/8ths inch holes in 6 inch deep wood. I use plain, unbleached brown paper from grocery bags rolled around a tent pole as liners which brings the finished diameter of the hole to the optimal 5/16th inch. The rolled liners extend 1 inch out the back and are folded over with a back plate screwed on. When harvest time comes I just unscrew the back plate and pull out the paper liners (Paper Liners That Work). For more information on how to manage Mason Bees for your home or farm go to the Native Pollinators section of our Library and scroll down to Mason Bees. If you are just starting out you can buy cocoons off Craigslist for 50 cents a cocoon and from some garden stores for $1 per cocoon. Good sources of supplies and information are Crown Bees and Beediverse. Good luck.