Black Substance On House Siding

But testing is probably not justified.

Black substance on house siding.

Use these simple landscaping tips to prevent this from happening. In nature the artillery fungus shoots its spores towards sunlight. 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. Are those spots alive.

By the growth pattern we think this is almost certainly a dark colored algae. And of course the black spots show up better on white surfaces so they are noticed more easily. The black stains on the vinyl siding shown at left may be a fungus or a black agae. Whether it s mold or mildew your siding is no place to have things growing.

A microscopy lab examination of a sample from this surface would be needed to know for sure. If you re seeing dark specks on your siding the culprit could be hiding in your mulch. In the absence of direct sunlight it shoots the spores at highly reflective surfaces such as white house siding. Watch as lou manfredini ace s home expert shows you an easy and affordable way.

They are the reproductive structures produced by artillery fungus sphaerobolus stellatus one of several fungi common on wood mulches used around plantings in home and commercial landscapes.