Preventing staining from black spores released by mulch?

[boarderx]

Last night my sister came to my house complaining about the black "things" stuck to her car. The black things were spores, I guess, released from landscaping mulch. I looked at the car and saw tons of them over her car. They look like poppy seeds and are stuck to the paint. I washed the car to remove the actual "seeds", but they leave quite a stain on the clearcoat. I was able to remove most of the stains using clay. I then applied P21S Paint Cleanser and a coat of S100. Will this wax help keep the spores from attaching to the paint? If not will something like Klasse or Zaino work better? Any suggestions for removing the stains without claying?



I know this subject has been talked about before and I searched for posts, but I was unable to find any.