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Old 04-06-2009, 11:36 AM
Joe Daher Joe Daher is offline
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Join Date: Apr 2009
Location: Davenport, IA
Posts: 4
Joe Daher is on a distinguished road
LOL. They're not bee droppings.

I've managed a carwash/detail shop for about ten years. And for about five of those, I always told my customers that these little black spots were tar, or tree sap. After finally getting fed up, I did some research.

Actually, these spots are caused from a fungus that grows in mulch. It's called "artillery fungus," because they shoot their spores up to 20ft in the air, causing them to stick to the sides of buildings, cars, and whatever else may be around.

I've found that even though these spots are organic, clay works pretty well to get them off...it just takes forever.

Here's a link for more information, even though this is in reference to them being on a house:
Artillery Fungus- Frequently Asked Questions (FAQ)
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