Dirty corner behind the corner sofa? What is that?

Hello community,

the grey stuff on the white baseboards is dust - not mold or anything like that.

- In the corner there are strange spots on the wall - mold stains?
- From the corner, almost under the baseboards, I saw a yellowish shimmer, so I wanted to check what is going on behind it.
- What are those yellow spots on the backs of the baseboards?
- Noticeable were these little creatures behind the couch, which crawled out on the wall.











2 seconds video "little creatures": [MEDIA=imgur]a/IVN6664[/MEDIA]

Can someone "enlighten" me?

Thank you

Was the couch standing against the wall? There will be mold stains or mildew, I can't comment on your critters ^^

The animal was also discussed recently in the green forum, wasn’t it?!

Gnaw marks and pests included.
Damp in the corner or just residual moisture in the new building?

I would suggest looking into [Staubläuse]. Just type [Staubläuse] into Google, then a page from [DSV Verband Deutscher Schödlingsbekämpfer] will come up... it also fits the dust you have.

https://www.hausbau-forum.de/threads/was-sind-das-für-viecher-und-wo-kommen-sie-her.33905/

The same critters?