Dilemma- ground bees.

[Cattledog]

1. Ground bees are not aggressive.

Not all bees live in hives like honey bees do. In fact, 70% of all the 20,000 species of bees nest under ground. In North America, most of these ground bees become active in early spring. Nests of these bees are easy to identify above ground because of the conical piles of dirt with a large hole in the middle that serves as the entrance to the bee burrows

Unlike social bees and wasps, solitary species are not aggressive insects even though females do have sting. These bees will not attempt to sting humans unless handled. Most activity at nest sites in early spring is of males looking for females to mate with – male bees cannot sting.

All of these native bee species provide important ecological services that include pollinating many of the plants in your garden and nearby. Specifically, Colletes inaequalis and similar looking Andrena species are important pollinators of spring crops like apples, blueberries and cherries.

Therefore, we do not consider these bees as pests and strongly recommend avoiding the use of chemicals to control them. Pesticides are bad for humans and beneficial insects. Usually, using water over the area of the nest is enough to encourage the bees to look for a different nesting area. However, due to their beneficial role as pollinators and their lack of aggressive behavior, please consider maintaining these important bee pollinators in your backyard!

https://entomology.cals.cornell.edu/extension/wild-pollinators/native-bees-your-backyard/