So with that in mind the some I speak of could be a conservative fifteen thousand acres. Some not all. Other populations can live thirty years and more, with the fungus. While other infected trees maintain a normal-appearing crown with its full four years of needles. This leads many researchers to think there may exist a tolerance in the species.
T here are many things that researchers in both the public and private know about the disease.
They know that in the trees that do not die there is slowed growth. They know that the symptoms are more obvious in younger trees of 10 to 30 years of age. They know it is wind-borne and flowers in the wet winter and spring. They know that the tree won't get over it as if it were a cold. They know that the area of infection is much larger than that which was mapped from the air last year.