Find out how to get rid of artillery fungus on your siding. Get tips on cleaning it off using trisodium phosphate paste. Also learn why you should replace your shredded mulch with wood chips.
LESLIE: Now we’ve got Christina in Michigan on the line who’s dealing with some mold stains  on her siding. Tell us about it.
CHRISTINA: I had green mold on the siding and used a commercial mold remover for it and it took the green mold off. What was left were little black dots and I’m wondering if maybe it’s from little bugs of some kind. And I can’t get them off.
TOM: Do you have mulch around your house?
TOM: You may have artillery fungus. Artillery fungus …
LESLIE: Which may have been hiding under the other mold.
TOM: Yeah, probably was hiding underneath the green mold. See, artillery fungus  lives in the mulch, especially if it’s the shredded kind, which is what most of us have as opposed to just the bark chips. And it will get up into the air and it will attach to siding and it loves to attach to vinyl siding. And it’s really, really hard to get it off.
You can try a TSP – trisodium phosphate – in a paste right on some of the spots and see if it’ll release.
TOM: But it’s very difficult to get that stuff off and one of the long-term solutions would be in the next time, maybe next spring if you decide to update that mulch , rake out that old stuff and replace it with wood chips. And that’ll stop it from coming back.
CHRISTINA: OK. Thank you.
TOM: You’re welcome. Thanks so much for calling us at 888-MONEY-PIT.