Aside from immediate removal to be burned, the time for preventive action
this year has passed.
As you'll see on the link below, "the cutting of live trees is not
recommended during the period of June through September. Cutting during
this time may attract beetles to the area, especially if the slash and/or
wood are to remain on site."
Here is the information we received from Andy
of CSU (http://csfs.colostate.edu/) in
March along with some other sites I found in my searches.