The recent discovery of needle disease in Pine Park prompted some research. Here are some articles that provide more information:

UNH (April 2018): White Pine Needle Damage Slowing Growth, Hampering Health of Region’s Trees

Forest Ecology and Management (Sept 2018): Impacts of White Pine Needle Damage on seasonal litterfall dynamics and wood growth of eastern white pine (Pinus strobus) in northern New England

Forest Ecology and Management (Sept 2018): Thinning treatments reduce severity of foliar pathogens in eastern white pine