Thanks for the compliment GTODEALER.
Tree saps, like bug remnants, are water soluable. Place your car in an area where there isn't any direct sunlight (and no, not in the shade of a tree, har har) and simply hose the car down.
Just soak the car for around 15 minutes -- hitting it again every few minutes so it doesn't dry and create water spots. Then wash your car normally, using a big chenile mit and a bucket of Meguiar's car wash (the pink stuff that doesn't have any goofy waxes or additives in it). Just keep swirling the mitt -- using a lot of the soapy water as a lubricant. That should do it. If not, then GM Kid's solution is the way to go.
Again, this same approach works on bug remnants, too. Just hose off the front of your car and work back to front. When you get to the front -- everything comes right off because it has already been softened up.
BTW, one of the benefits of having a good coat of wax on your car is that you have a barrier to play with. Had a white WS6 TransAm once. Some jerk drew a line down the size of it with a big, fat Marks-A-Lot magic marker. Got home, hit it area with some polish and reglazed -- totally gone in 5 minutes. If there wasn't any protection there -- the clearcoat may have gotten stained.