Troubleshooting: While Bees Fly
Mason bees emerge when the time and conditions are right for them - usually in the spring when temperatures are nearing 55F. Depending on your weather patterns it can take two weeks or longer for mason bees to emerge from their cocoons.
When a bee emerges while stored in your cold fridge it usually means that the bee is low on stored fat. You might want to check on the temperature setting of your fridge because if it’s too warm it will increase the bee’s metabolism. It also may be it's time to release your bees (Past May). We recommend that you set your fridge between 34-38F (1-3C).
Remember that the bees need the warmth of the morning sun to gain energy to begin flying but cocoons should not be placed in direct sunlight. Too much exposure to hot, direct sunlight can harm or kill a bee cocoon.