Browning needle tips (terminal growth) = tree is dying. Healthy pines keep terminal needles green.
Bark beetles (e.g., Ips, Dendroctonus) girdle phloem, cutting water to crown. Reddish pitch tubes + borer holes = classic signs.
If only lower 16 ft attacked and crown still green, turpentine beetle may be treatable with Onyx/Talstar trunk spray (lower 16 ft).
With terminal browning, tree is likely beyond saving. Remove promptly to prevent beetle spread to nearby pines.
Rescuing Drought-Stressed Pine Trees in Texas
Diagnosing Pine Needle Browning in Oregon
Old Pine Dropping Green Needles: Bark Beetle Emergency
White Pine "Worms" in Maine: Pine Sawyers, Not the Killers
Pine Cone Absence in Massachusetts: Not Necessarily a Problem
Identifying a Tree with Round Cones & Tiny Needles: Bald Cypress
Pine Needles vs. Native Grass: Rake or Keep?
Yellowing Needles on a Newly Planted Afghan Pine
Confirming Shortleaf Pine and Measuring DBH Correctly
Perfectly Round Holes in Pine Trees: Sapsucker Damage, Not Carpenter Bees
Is My Pine Tree Dead? All Needles Brown
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