Both mason bee condos are in the process of tube loading. One condo is totally full and the other is about 3/4ths full. I am using a combination of hand made paper tubes and freshly cut black bamboo.
I never reuse bamboo tubes. If a bamboo tube was not used by the bees last year, then I discard it. I assume there was something wrong with it.
This year I carefully cut the node end so that it is not wider then the rest of the tube.
I calculate it takes me about 30 seconds to make one paper tube. So that an hour of tube making results in approximately 120 tubes. The final step in paper tube making is to plug one end with white clay. Some of the bamboo tubes are not cut at a node so I also plug each one with the white clay.
I am putting a small amount of silicone caulking on the end of each tube as it is loaded into the mason bee condo.
This year I may mount the mason bee condos outside much earlier than last year. The highly beneficial climate change may allow the bees to start their work earlier. I do not want to limit their access to tubes.
Even though the bees may not begin until pI day, aka Einstein's birthday and circa Julius Caesar's murder, I still plan to mount the condos before the end of January.
At this point I have all the tubes ready. As soon as I get them loaded, I intend to mouth the condos. I have been doing this for 3 years. I think I have a pretty good handle on bee storage, tube construction and mason be condo preparation and mounting.
I think I may prepare a few glass bottles and load some tubes. I intend to use dark glass wine bottles.