White Pine Mortality After Drought and Ice Storm: Beetles or Root Rot

White Pine Mortality After Drought and Ice Storm: Beetles or Root Rot

Brown needles at all branch tips on a 20-year-old white pine after two drought years and a severe ice storm indicate the tree is dead. Drought weakens pines, inviting bark beetles that finish them, or root-rotting fungi (Armillaria, Heterobasidion) that kill from below.

Assessment

• Check for pitch tubes (beetles) or white fungal fans under bark (root rot).
• If dead, remove promptly to prevent beetle spread to nearby pines.
• No treatment reverses mortality at this stage.

For remaining pines: deep water during drought, avoid root damage, and monitor for beetle signs.