Once the adelgid is introduced to this area, the most likely way it can spread locally is by birds and small mammals carrying it from one hemlock to another,&quot; said Rusty Rhea, a forest health specialist for the U.S. Department of Agriculture.
(the adelgid; is introduced; to this area) (it; can spread; L:locally)
the adelgid it
is introduced can spread
to this area
L:locally