Subject: Wasp
Location: Pennsylvania
August 19, 2015 1:51 pm
We have these wasp in our yard think they have a nest underground how do we know for sure and get rid of it
Signature: Sharon

Digger Wasp

Digger Wasp

Dear Sharon,
This is a solitary Digger Wasp,
Scolia dubia, and it is not an aggressive species.  They develop underground, but they are not social wasps with hundreds of members of a colony.  According to BugGuide:  “Males and females have a courtship dance, flying close to the ground in a figure-8 or S pattern. Females burrow into ground in search of grubs, especially those of Cotinis and Popillia japonica. She stings it and often burrows farther down, then constructs a cell and lays an egg on the host. Larva pupates and overwinters in a cocoon within the body of the host. One generation per year in North, more in South.”  Any insect that preys on the invasive Japanese Beetle is a friend to the gardener.  We do not provide extermination advice.

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Location: Pennsylvania

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