Greetings,
I own some land in south central Colorado which has
some infested areas.

I am felling any small to medium
size trees that appear to have a lethal level of infection.
Most seem to be Subalpine Firs (?), with some pond-
erosas and Lodgepoles also.
Tree cover is a Douglas Fir, Subalpine Fir,
Ponderosa, Lodgepole, Aspen mix at around 9000'.
Would Blue Spruce be a good choice for re-planting
or should I stick with species already present? What would
be the fastest growing species?

(commercial aspect unimportant)