Tiny Black Spots On Vinyl Siding

The black tar like spots that are all over your vinyl siding are more than likely a fungus called sphaerobolus stellatus better known as artillery or shotgun fungus although it s most often found on the east coast it can grow anywhere and especially thrives in areas that have cool damp springs or rainy fall weather conditions.

Tiny black spots on vinyl siding.

John shows you images o. Artillery fungus is a wood dwelling fungus commonly found in mulch. The best thing. It s on the porch my windows but it is worse on the siding.

Small black spots on siding. It goes all the way up to my second story windows and is even under my soffit and on my gutters. Thankfully i only have one area that has plants next to it so the bleach solution wouldn t hurt them but not sure about my deck stains. It s on the porch my windows but it is worse on the siding.

Others have said it s a fungus from mulch. It goes all the way up to my second story windows and is even under my soffit and on my gutters. Click to enlarge any image small gray or darker round spots on siding that are about 1 16 in individual diameter particularly if the spots are slightly raised may be artillery fungus a mold spore. The photo at above left shows green algae on vinyl siding.

The good news is the fungus isn t poisonous to you or your pets but unfortunately you can t remove its extremely sticky spores without damaging the walls of your house or any other surface it lands on. You have the infamous artillery fungus. Algae may also look black or brown as may some molds. If you notice lots of tiny black or dark brown spots developing on your siding above a landscaped area of your yard as seen below it is most likely artillery otherwise known as shotgun fungus.

Tiny black specks you can t rinse off with a hose. If your house is in the way of the spray you ll see the results. The siding has been on the houses for 12 years and now everyone is talking about the black spots so it s really a town issue lol but one we need to figure out. We have these small black spots that look like specks of tar all over our white vinyl siding of our house.