Black Spots On Siding In Clusters

These spots are often caused by spiders especially true when you re near water.

Black spots on siding in clusters. Some in my hard wood entry way too. I live in colorado on the prairie so no humidity no mold. 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. Use these simple landscaping tips to prevent this from happening.

Bet your boat will have spots too if you have one. Artillery fungus scientific name. Artillery fungus common name. What are these black specks on my house siding and windows.

Artillery fungus is a wood dwelling fungus commonly found in mulch. Because this organic material sticks to house siding and windows we. There are these little clusters of about maybe 10 15 perfect black circles just a bit larger than the period at the end of this sentence. In the absence of direct sunlight it shoots the spores at highly reflective surfaces such as white house siding.

Are those spots alive. Click to enlarge any image small gray or darker round spots on siding that are about 1 16 in individual diameter particularly if the spots are slightly raised may be artillery fungus a mold spore. The photo at above left shows green algae on vinyl siding. Have to scrub hard to remove them.

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. The dark spots are indeed spores but they do not come from your oak trees. And of course the black spots show up better on white surfaces so they are noticed more easily. Species of sphaerobolus a pro services inc has competed with artillery fungus for several years.

We don t see it often in south ga because pine straw is the bedding cover of choice i ve never heard of anyone gtting new siding because of it. Black spots on siding. 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.

Algae may also look black or brown as may some molds. In nature the artillery fungus shoots its spores towards sunlight. It most likely is artillery fungus and there is no way to completely remove it even if you hand scrub the spots. If bug poop what kind of bug.