Four wasp nests in Canberra

We have four nests under the eves on the porch and all are native Australian wasps.

They shouldn’t be a problem unless in high traffic area (which these are really). I was stung once, it hurt!

They are a gardeners friend because they keep caterpillars under control.

The best advice I’ve found to remove them is to use a fast knock down insecticide spray after dusk when all adults are back on the nest. Just make sure there is a clear path back to the house so you don’t trip. Decided it would be a bit tricky to do this with four nests. I may succeed at killing the wasps on one nest but the wasps on the other three will probably start attacking me!

One is a nest of Roplalidia Plebeiana and the other three nests are Polistes Humilis. Names like that make the wasps sound very clever.

The one above the stairs is Roplalidia Plebeiana
The one above the stairs is Roplalidia Plebeiana
The other three are Polistes Humilis

I found this PDF article really useful for identifying the species.

There’s a wasp hotline to call in Canberra on 0261621914. I think they will remove any European Wasps nests free of charge, and give free advice on other species of wasp but not removing the nests.

Update: All wasps were gone by the second week of May, and the nests became a great preschool show-and-tell activity.

Update: It’s early October and the wasps are back, exact same locations as last year.


Thanks to Salihan Laugesen for reading drafts of this.