Ever wonder what it takes to clean over 3 million mason bee cocoons? Our nationwide program ensures healthy, parasite-free bees are ready to pollinate gardens across the U.S. The 3 most important steps to caring for mason bees: 1) Clean nesting material placed out in spring 2) Don’t leave nesting material out year-round (bees live 6–8 weeks) 3) Harvest & clean cocoons in fall to remove predators Watch how we clean and prepare your mason bees for Spring. For more information visit www.RentMasonBe