Artillery fungus is a wood dwelling fungus commonly found in mulch.
Brown spots on house siding.
Where you ll find them.
Algae may also look black or brown as may some molds.
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 difficult to get rid of because of its sticky properties.
This may be where it s stemming from in your yard as you mention that the fungus seems to be limited to growing on the siding closest to your mulch beds.
This fungus can grow on multiple surfaces including wood siding fences decks and cars.
What it looks like.
I e not entire house.
The dark spots are indeed spores but they do not come from your oak trees.
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.
Others have said it s a fungus from mulch.
These crickets are light brown tan and dark brown with a humped back.
We have thousands of tiny black spots pin head size all over the siding of our house.
This mostly happens during cool rainy spring and fall seasons especially in shady areas so you re most likely to find it on the darker north side of your house.
Artillery fungus stops making spores when the temperature is over 78 f so you will get a break in the summer.
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.
We have a problem with our siding on front and back of our 2 story home.
The photo at above left shows green algae on vinyl siding.
It is occuring on first floor only same area in front as in back.
The brown recluse likes to hang out in undisturbed corners of homes in sheds and in basements or cellars.