https://youtu.be/7qHaE0Y-OLc
Bees that burrow into the ground make up 75% of all the solitary bee population. Ground-nesting bees in your garden are very beneficial because they aerate the soil, pollinate the plants and are predators to damaging garden insects. In fact, they are very efficient and effective pollinators to all flowering plants. Usually, this bee is not that hostile but there is always a chance of being stung. Ground bees look similar to other bees and wasps that are a lot more belligerent (so google solitary bees and you can distinguish the difference). The female bees dig nests to raise their young and build supplies of pollen and nectar for food. Ground bees live a solitary life in the ground making many holes in the ground, whereas wasps and bumblebees use only one hole for the entire colony. Ground bees are attracted to gardens and lawns where there is dry sandy soil and this is where they make small knolls of soil as their entry point. To discourage ground bees, add mulch to your garden, peaty soil to your garden or water weekly. These bees are only active for about a month and half, yearly.
gogreenpestcontrol.ca Ladner Tsawwassen Delta B.C. Randy Bilesky
https://www.linkedin.com/pulse/burrowing-bees-randy-bilesky?published=t
http://www.delta-optimist.com/opinion/blogs/blog-burrowing-bees-1.21526849