How to get rid of the black spots that spiders leave on my white vinyl siding?

We have used everything…..including our power washer. Nothing works….HELP!

How to remove spots from vinyl siding?

I live in New England. My white vinyl siding has developed small black spots on it. They are about the size of a pin head and are raised. You can scrape the raised portion off and they feel soft but they leave behind a black spot. Nothing seems to remove them. I have tried several [...]