Leaves – Evergreen needles; ½ -1” in length, flat, and attached directly to the twig via a small peg. Needles are dark green above, with prominent glaucous white stomatal bands beneath. Twigs and Buds ...

"The work represents a big step forward in understanding natural pest resistance in white spruce and potentially for all conifer tree species," he adds. "It's like discovering that trees have ...

Spruce trees retain ancient memories of their environment and communicate with one other in the hours preceding a solar eclipse, a new international study suggests. "We now see the forest not as a ...

But what's killing those trees is an insect that's the size of a grain of rice. The spruce budworm is eating its way through the balsam fir and spruce that make up much of the Northwoods in what ...

helps students plant young cedar trees at Evergreen Cemetery on Monday, May 19, 2025. A student shows two spruce tips in his open palm to Patterson. (Laurie Craig / For the Juneau Empire ...

Hours before the sky darkened in a partial solar eclipse, dozens of spruce trees began to shift. Their electrical pulses, imperceptible to human senses but measurable with the right instruments ...

In their new research, scientists from Italy, the United Kingdom, Spain and Australia monitored multiple spruce trees (Picea abies) to assess their individual and collective bioelectrical responses to ...