Black Spots On Siding From Mulch

You have to scrape them off and they leave behind a stain that is almost impossible to remove.

Black spots on siding 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 are these black spots on your house siding. This will buy you a year before the fungus reaches to the top of the new mulch. Some tell us it s from spiders.

Artillery fungus is a wood dwelling fungus commonly found in mulch. Others have said it s a fungus from mulch. Use big pieces of pine bark or other bark mulch which are a less hospitable place for the fungus. Davis of penn state.

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. They are raised hard bumps. It s sometimes referred to as shotgun fungus due to the shotgun like pattern of black specks all. The tiny dots are caused by what s called artillery fungus that grows in certain types of mulch.

Replace wood mulch with landscape fabric and small stones. Add a fresh layer of mulch.