fungus

Wanted to get an idea from experts/people who have dealt with what I presume is dry rot in a friend's house. Posted pictures, one from August and a comparison to now where it seems to have gotten significantly worse. It's downstairs, there's no immediate current source of moisture outside...

I've recently erected bigdug shelving in my basement to help with organising tools and things. I've noticed that the wooden shelf-boards that come packaged with bigdugs attract to dust-like micro-fungus. I've taken to wrapping the shelves in clingfilm and sellotape to prevent the fungus from...

Hi I have this seeping out of brick/cement plastered walls in my holiday home in sunnier climates. Does anyone know what it is? What is the treatment? TIA