Small Black Spots On Vinyl Siding

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

Small black spots on vinyl siding.

Micro black spots on siding tags. It goes all the way up to my second story windows and is even under my soffit and on my gutters. 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.

A microscopy lab examination of a sample from this surface would be needed to know for sure. 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. Artillery fungus is a wood dwelling fungus commonly found in mulch.

Lawn garden we have thousands of tiny black spots pin head size all over the siding of our house. Use these simple landscaping tips to prevent this from happening. Some tell us it s from spiders. But testing is probably not justified.

By the growth pattern we think this is almost certainly a dark colored algae.