Black Spots On White Vinyl Siding

We have these small black spots that look like specks of tar all over our white vinyl siding of our house.

Black spots on white 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. 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. Shotgun fungus can shoot black spots on your house here s how to avoid the mess. It goes all the way up to my second story windows and is even under my soffit and on my gutters.

Allow it to bubble on the siding and then sponge it off mouthwash is another bizarre solution to remove artillery fungus but don t laugh. It s on the porch my windows but it is worse on the siding. 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. You will find it nearly impossible to remove these spore masses from a home without removing the paint.

Artillery fungus is a wood dwelling fungus commonly found in mulch. You have the infamous artillery fungus. Small black spots on siding. In nature the artillery fungus shoots its spores towards sunlight.

In the absence of direct sunlight it shoots the spores at highly reflective surfaces such as white house siding. Are those spots alive. There s also hydrogen peroxide at a strong strength. As these structures dry the spore mass is shot out of the fungal vessel to a distance as much as 10 or 20 feet.

If you re seeing dark specks on your siding the culprit could be hiding in your mulch. And of course the black spots show up better on white surfaces so they are noticed more easily. Bleach is one of the most popular remedies to zap those black spots but it requires lots of scrubbing and a little muscle.