I live in the Pacific Northwest with lots of rain. I raise Christmas trees  
and have to pay attention to how the tree looks. I had customers buy pine 
trees  for Christmas who said that after Christmas they made tea out of the 
needles and  even the bark (Pycnoganol).  I used to paint the pines to cover 
their  yellow needles caused by a fungus. I stopped painting the trees after 
they told  me what they did. Guess what? Sales of pine trees dropped off as 
they were more  interested in looks.
Brickey