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 ...
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, ...
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