female O. lignaria on almond bloom

 The Orchard Bee Association (OBA)
is an international organization dedicated to enhancing the use of native and naturalized bees in orchards.

The OBA meets annually. Members fly in from around the world to discuss breakthroughs in mason bee development and pollination. Whether you're a grower, scientist, backyard gardener, beekeeper, student or entrepreneur, you're encouraged to become a member. In 2014, the OBA became an official 501(c)(3). Through membership dues and donations, the OBA improves food security locally and abroad.