In the absence of direct sunlight it shoots the spores at highly reflective surfaces such as white house siding.
Black spots on siding in clusters.
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.
And of course the black spots show up better on white surfaces so they are noticed more easily.
Use these simple landscaping tips to prevent this from happening.
I have hundreds of tiny black dots spread out all over my house.
Lawn garden we have thousands of tiny black spots pin head size all over the siding of our house.
Micro black spots on siding tags.
Some tell us it s from spiders.
Others have said it s a.
Are there any chemicals recommended that wont ruin my vinyl shrubs or lawn.
The dark spots are indeed spores but they do not come from your oak trees.
In nature the artillery fungus shoots its spores towards sunlight.
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.
They wont come off with plain high pressure water or a brush its even hard to scrape them off with my fingernail.