Brown birch trees in both Southcentral and Interior Alaska this summer aren’t signaling an early fall. Rather, they are subject to an infestation of small, leaf-munching larvae. Alaska is in the midst ...
Q: Can you help me figure out what’s likely going on with this river birch tree? The tree has been dropping leaves incessantly since about April/May, hundreds per day. Should this tree be dropping its ...
Q: Am I the only one whose birch tree has suffered this winter? It bloomed beautifully, but now half of it is dead and has almost no leaves. Should I call an arborist? Can this tree be saved? A: This ...
Larvae of the leaf beetle Chrysomela lapponica attack two tree species: willow and birch. To fend off predator attacks, their larvae produce toxic butyric acid esters or salicylaldehyde, whose ...
The chartreuse leaves of the birch tree are one of the first signs of spring in Southcentral Alaska. But for a few weeks before the leaves unfurl the trees offer a sweet treat –a watery liquid that ...
When fall emerges, lush green tree leaves give way to a variety of warm hues that mark the changing of seasons.
Well into their senescence period, birch trees' leaves have turned yellow near the Alaska Public Media studios in Anchorage as of Oct. 1, 2021. (Casey Grove/Alaska Public Media) It's green-and-gold ...
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