From May through June 2021, spongy moth caterpillars ate nearly every green leaf in our aspen forest. By early July, however, the trees grew another full set of leaves. A second aspen forest of ...

"Aspen trees—like their relatives ... As expected, that second green canopy of leaves appeared by early July in Lindroth's forest plot. But the backup crop of leaves was different in at least ...

Populus tremuloides, the quaking aspen ... many "leaf peepers" who find the brilliant gold, yellow, rose and even red leaf colors especially striking set against the dark green of their evergreen ...