The perfect choice for annual mason bee raisers! Our wood trays are long-lasting, reusable, and easy to open for fall cocoon harvesting. Precision crafted of Pacific Northwest alder, our wood trays are a safe and natural nesting material for bees.

• Nesting holes are 8mm in diameter, the preferred size of mason bees.
• 96-Hole Count Tray: 7" H x 5.75" W X 6" D | Fits Tower Houses

Features:

• Wood material provides both insulation and moisture control to protect mason bee cocoons from extreme temperatures and mold caused by excess moisture.
• Wood is a porous material, which captures and retains natural nesting scents and helps to attract next season's bees.
• Reusable wood trays minimize year-to-year costs.
• The front of the trays are lightly burned, creating a visual pattern that helps female mason bees locate their nests and removes splinters that can harm bee’s wings.
• Side notches lock into neighboring trays, retain alignment, and help block pests from entering the nest from the side.
• All wood trays come with removable cardboard backing and pest-blocker fabric to prevent pests and parasites from entering the nest from the back.