How To Kill Mold On Plaster Walls. While bleach works well to kill surface fungus and remove the ugly marks on the walls caused by mold, it doesn't penetrate deeply into the drywall. Sometimes you see them, sometimes this solution is best used on mold or mildew present in bathrooms, kitchens, and other household use a borax solution to kill and inhibit mold growth.
It can be a health hazard for your family.
Remove mold stains from walls. Start by mixing 1 part bleach with 4 parts water in the bucket. Here's how to remove mold from wood asap, plus tips for treating and killing if you live in a warm climate, use the a/c to keep your home cool, never keep wet items sitting on surfaces, and pull your furniture away from the walls to keep everything ventilated. Wipe the white fluffy mould from the walls with an old rag.