Each female constructs her own nest without help of other bees. Once this flight dies, there will be no activity in the area until the following spring. These bees do not have a nest guarding instinct as do the social wasps and social bees. Just walking by the nests will not prompt the bees to attack as they do not possess alarm pheromones and instinctive behavior to attack. It may be possible to step on such a bee while barefooted and get stung on the foot, but that is about the only hazard from these otherwise beneficial insects.
Solitary bees are valuable pollinators of spring crops.
It is better to coexist with the bees because of their value in the pollination of various crops than try to eradicate them with pesticides. Note No. 100 contains more information on these and other ground nesting bees. The challenge this time of year is within a month most of the grubs will pupate and begin their transformation into beetles. The most effective controls are directed against the newly-hatched grubs in mid summer. Fire ants are also active and their activity will be noticeable until mid summer.