Black Spots Vinyl Siding

The artillery fungus is a white rotting wood decay fungus that likes to live on moist landscape mulch.

Black spots vinyl siding.

Dirt and insect secretion stains however can adhere to vinyl siding attracting molds mildews and algae. Some tell us it s from spiders. We have these small black spots that look like specks of tar all over our white vinyl siding of our house. Others have said it s a fungus from mulch.

If you have new vinyl siding that s still shiny and you know that the spores haven t been stuck on for more than a few days you might be able to power wash them off. 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. What are these black spots on your house siding. Artillery fungus is a wood dwelling fungus commonly found in mulch.

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. 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. 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. It goes all the way up to my second story windows and is even under my soffit and on my gutters.

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. Davis of penn state. Algae may also look black or brown as may some molds.

Vinyl siding is very popular due to its durability and simple maintenance. We have these small black spots that look like specks of tar all over our white vinyl siding of our house. 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. You have the infamous artillery fungus.

The photo at above left shows green algae on vinyl siding. We have thousands of tiny black spots pin head size all over the siding of our house. It s on the porch my windows but it is worse on the siding. Shotgun fungus can shoot black spots on your house here s how to avoid the mess.