Mason Bee- Tubes, Liners or a Combination

Choose between 10 tubes, 10 liners or a combination of 10 tubes & liners for your mason bee homes!

Tubes: The cardboard tubes act as protectors for the inner liner. The notorious parasitic wasp affecting mason bees, chalcid wasp, cannot penetrate the cardboard exterior to pierce through and oviposit an egg in the developing mason bee cocoon. The tubes are 5 3/4 inches long with a 5/16th ( 8mm) hole and have a  0.040 inch thick. Reusable if tube is used with a removable liner.

Liners: The liners are 0.010 thick inserts that you add to cardboard tubes. The liners are removed at the end of each season and unravelled to harvest nesting cocoons. Replace liners each year after harvesting cocoons!