pine tree growth

Oct 25, 2006
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if someone could explain this to me,after my carranza jaunt today,i went over to my friend's house around camp inawendowin,went into the back acre to sit down and enjoy some brews,then i noticed on one and only one pine tree on over 75% of it ,had a growth on it that i have never noticed before,it looked like half moon mushrooms,is it a fungus?weather related to the warmth?or the rains lately?,or just the sign of a dead tree?
 
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