Sealing

[Alwayslearning22]

What is the proper way to seal this opening through floor? Garden is infested with rats I’m worried they might end up coming through this pipe.
thanks 

[JohnMo]

I would and did, stainless mesh screwed up and stuffed in, and the spray foamed it all together.

 

Next get bait traps with this in there https://amzn.eu/d/0fyW3NPc 

 

It's a one time eat and their dead.