I was park my car under the tree in morning, when i come back in mid noon, oh my god ! all over the tree dropping around my car,

I just use meguair's quick detailer able to clean out most off the dirt. But only one on the bonnet after clean, the stainmark still there in red color, unable to clean off! although the cleaning surface is smooth,
then i use waxco stain cleaner to wipe off also cannot clean off! even try to clear with wax and polish, still can't!my car is white

dear all, what...