In 2002, Crater Lake National Park ecologist Michael Murray thought the park’s majestic whitebark pine trees were as good as ...

A tree gets rid of White Pine Needle Disease by shedding all the needles infected by fungi. Before the needles fall, they will turn shades of yellow and brown. Photo by Emma Malinak/VTDigger Drive ...

MONTGOMERY, Ala. (WALA) - The Alabama Forestry Commission says on its Facebook page that fungal disease is affecting pine trees in the state. Here is the post: Montgomery, Ala. – Last year, southern ...

Pitch tubes, or nodes of tree sap, which indicate the presence of the southern pine beetle, are visible on a pitch pine tree at the Wertheim National Wildlife Refuge in Shirley in 2014. The beetles, ...