as above, just a wasp nest. no wasps on it, its dead, so just knock it off.

Perhaps soak it with a strong soap solution first such as dishwashing detergent. That will kill them all quick.

no need to try and kill them, its already dead. alive nests have wasps on them looking after the young. wasps are in hibernation at the moment.

Burn it to be sure.

Journeyman:

 

Burn it to be sure.

 

lol 🤡

I finally got around to knocking the nest down.

Luckily it was only a 10C morning and a dozen or more sluggish wasps started crawling around on the ground.

I gave them a spray of sugar soap followed by some CRC (only stuff I had on hand) 😀

I notice you did not burn it with fire.

Journeyman:

I notice you did not burn it with fire.

SepticSceptic: CRC and a lighter combined makes for a very effective tool for dealing with wasp nests ...

Too late now but my vote would have been filling up a paddling pool and knocking it into that. 

While not as exciting as fire, water does the job with less chance for property damage. 

Seems to be the nest of the Australian paper wasp :-)

BUT