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.
Small black spots on vinyl siding.
It s on the porch my windows but it is worse on the siding.
Some tell us it s from spiders.
Lawn garden we have thousands of tiny black spots pin head size all over the siding of our house.
The black stains on the vinyl siding shown at left may be a fungus or a black agae.
Others have said it s a.
Micro black spots on siding tags.
But testing is probably not justified.
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.
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.
We have these small black spots that look like specks of tar all over our white vinyl siding of our house.
By the growth pattern we think this is almost certainly a dark colored algae.
Artillery fungus is a wood dwelling fungus commonly found in mulch.