Pine: Pine needle scale, Hortsense
PINE NEEDLES - Master Gardeners of Spokane County - WSU
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Master Gardener: When to be concerned about brown pine needles
Why is my evergreen turning brown and losing needles? - Gardening
Idaho Growin': Yes! Pine Trees Dropping Needles in Autumn is Normal.
white mold on conifer turning needles brown – Toronto Master Gardeners
What's wrong with my plant? : Garden : University of Minnesota
How to Grow and Care for the Loblolly Pine
Winter Drying is a Likely Cause of Brown Pine Needles - Extension
Pines drop their leaves in fall too