Mortar Bees

Mortar bees are essentially solitary creatures. They are non-aggressive and gentle.

They are active for a few months during late spring and early summer. Holes are excavated in walls for the female to lay her eggs. The damage done is rarely serious in the short term and only soft (old) lime mortar is generally affected.

In the long term or when an area is heavily populated an insecticidal treatment will be required to eradicate the problem.