Are Ensign Wasps Dangerous?

Unlike other wasps or bees, ensign wasps are not known to sting or harm humans or pets in any way. However, this is not why you should refrain from squashing an ensign wasp. As hatchet wasps reproduce, they help in controlling cockroach infestations.

Should I kill ensign wasp?

Adult female Ensign Wasps often come into houses searching for oothecae. Unfortunately, many people kill them, thinking they are harmful pests when the truth is just the opposite. So if you see one, don't destroy it. Either leave it alone or put it outside.

Does ensign wasp sting or bite?

The ensign wasp is one of the odder insects found occasionally in homes. A small insect, only 5-7 mm long, it does not sting or bite. In fact, it does no harm; but it is a beneficial parasite of at least three household cockroaches, the American cockroach being the most common.