Hey Gang,
The November issue of Model Railroad Hobbyist is up and has an article on making decidious trees. The accompanying video can be watched below. While most of the steps in creating the trees are not new, I did find the final step of using yellow spray paint interesting.
I did some research into the Scenic Express SuperTrees. They can be bought from Scenic Express in 1/4 bushels for $26.98 or in a value case for $115.49. The 1/4 bushel has roughly 30 trees 5 to 8 inches tall.
Enjoy!