• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide

Artillery Fungus

We have some unusual "spots" on our siding.  They are a little larger than a pin head, smell and do not move. They are on several sides of our house and our sidewalk.  They are hard to remove and have to be scraped off of windows with a blade.  Do you have any idea as to what these are?

The black dots are the spores of artillery or shotgun fungus.  This fungus lives in rotting wood or manure and spreads by shooting its spores onto nearby surfaces.  Though annoying it does not harm the structure or plants. Reduce the problem by using bark mulch in place of wood mulch, applying a thin layer of fresh mulch over older mulch or using stone rather than wood mulches next to the house.  Washing infested areas with soapy water or a bleach solution may soften the spores and reduce their numbers.  Test a small area before using cleaners on structures.  Some cleaners and extensive scrubbing can damage siding. For more details see Cornell University's fact sheet on artillery fungus.


Upcoming Webinars & Appearances

Oct. 14-16
NARI Milwaukee
Home & Remodeling Show

Oct. 26

Webinar: Year-round Perennial
Garden Maintenance

Nov. 2
Webinar: Boosting the Beauty of
and Propagating Houseplants

June 3 – 11, 2023
“Castles & Gardens” Adventure in Ireland with Melinda Myers
Includes the Bloom Festival in Dublin!

CLICK HERE for more information on Melinda's 2022 Wisconsin State Fair presentations on
Affordable Food Gardening 

CLICK HERE for pollinator gardening webinars, videos & DIY projects

Watch Melinda's past webinars ON DEMAND

Learn More

Book an Appearance

Learn More

Enter to Win
a Corona Tools
Hori Hori Knife!