Brown Spots On House Siding

This fungus can grow on multiple surfaces including wood siding fences decks and cars.

Brown spots on house siding.

We have a problem with our siding on front and back of our 2 story home. Artillery fungus stops making spores when the temperature is over 78 f so you will get a break in the summer. 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. 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. 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. Others have said it s a fungus from 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.

What it looks like. Some tell us it s from spiders. These crickets are light brown tan and dark brown with a humped back. I e not entire house.

Many bites occur because the spider is hiding in folded towels. They have very long antennae and their bodies grow between 1 2 to 1 1 2 inches long. Where you ll find them. Artillery fungus is a wood dwelling fungus commonly found in mulch.

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. Algae may also look black or brown as may some molds. 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. We have thousands of tiny black spots pin head size all over the siding of our house.