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 ...

The tree in my yard has webbing in some of the branches, and I think I see caterpillars. What should I do? — K.W. The webs you are describing are probably the webs of tent caterpillars. Tent ...

Gypsy moth caterpillars have been known to eat 500 different species of plants and trees, but they have some favorites like oak, birch and aspen. Oaks can be especially hit hard, and often perish if ...

"There’s some live ones here and they’re pretty active," Carol Thaemert-Fox said, pointing to some forest tent caterpillars in a container. She captured them climbing up her trees near Aitkin, on the ...

Hardwood trees such as birch, maple or oak are in danger because of a little bug—the spongy moth—native to parts in Europe, but has been in the U.S. for over 100 years. The spongy moth is making its ...

At first I thought those hundreds of rolled-up leaves on the two old birches holding the hammock were catkins, those long, thin flowers we see in the spring. Of course, that was easy to think with a ...