If you get to one of them and sort of pull the carpet fibers back it looks like it starts at the very bottom of the carpet where it s woven into the backing and it s very very dark almost like.
Tiny black spots on carpet.
To rid your carpet of foul smells first blot any strongly affected spots with a damp cloth.
Now give the rug a healthy sprinkle of.
Sadly the case of black mold on the carpet will not be visible straight so it s better to send it to the nearby laundry to get it cleaned and has proper drying.
Only wool carpets and nylon carpets will accept most dyes starting in a hidden or at least not obvious area of the carpet mix 1 cup of distilled white vinegar into a1 gallon of warm water and spray the carpet test area evenly enough to wet the top of the carpet fibres.
Try 1 tablespoon of ammonia mixed with 1 cup of water but not on wool or wool blend carpet.
Instead use mild detergent and water.
It is a multi eating parasite if you watch the tiny black dots for a long time one of them moved i saw his two legs it looks like a dirt spot but it s not it s a mold eating parasite so now i have to call my home owners insurance and an exterminator that is the answer i finally figured it out.