Ips bark beetles run about the length of a grain of rice. By the time the needles turn red they have usually been in the tree for weeks — so the call worth making is the one you make while the tree still looks fine.
Host
Colorado blue spruce · Austrian & Scotch pine
Symptom
Pitch tubes on the trunk, boring dust in the bark crevices, fading from the top down
Window
Preventative trunk spray through 30 Sep · infested wood out now
