Small Black Spots On Vinyl Siding

Some tell us it s from spiders.

Small black spots on vinyl siding.

The black stains on the vinyl siding shown at left may be a fungus or a black agae. Shotgun fungus can shoot black spots on your house here s how to avoid the mess if you re seeing dark specks on your siding the culprit could be hiding in your 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. Others have said it s a.

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. By the growth pattern we think this is almost certainly a dark colored algae. A microscopy lab examination of a sample from this surface would be needed to know for sure. Lawn garden 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. It goes all the way up to my second story windows and is even under my soffit and on my gutters. 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. Artillery fungus is a wood dwelling fungus commonly found in mulch.

Micro black spots on siding tags.