Botanic Garden >> Gardening > >> Question and Answer >> Plant Diseases

Pine Borer/Beetle Infestation Killing White Pines

Symptoms

Five-year-old pines showing basal branch brittleness, needle browning, blackening trunk with white spots, spreading to adjacent trees. Black bark stains and exit holes indicate pine borers/beetles. White spots may be bark adelgids (secondary).

Urgent Professional Intervention

Do not delay. Hire an ISA-certified arborist for trunk injection and spray treatment. Borers kill quickly; homeowner products are insufficient for established infestations.

Plant Diseases: Diagnosing Pine Tree Decline in Southern Illinois; Saving White Pine Seedlings from Damping-Off in RV Grow Setup; Repeated White Pine Death in One Spot: Investigating Site Problems; Saving a Poorly Planted Evergreen in Minnesota; Transplant Shock in Young White Pine: Will It Recover?; White Pine Blister Rust: Girdling Gall = Tree Doomed; Propagating a Sentimental White Pine from Seed; Pruning White Pine as a Hedge in Georgia; Large White Pine Decline: Beyond Fertilizer; White Pine Decline: Pine Wilt or Root Disease After Absence

Garden Articles

Mystery White Haze on White Pine: Likely Benign

Pine Trees Browning While Neighbors Stay Green: Site-Specific Stress

Plum Tree Wilt: Lasiodiplodia Fungus and Extension Resource

Transplant Shock in Oversized White Pines: Root Stimulation?

White Pine Thinning & Tip Browning: Tip Moth, Weevil, or Roots?

Resolving White Fungal Growth on Pine Trees Caused by Overwatering

Thinning White Pine: Fertilization for Needle Density

Plants

Cutting White Pine Boughs for January Wedding: Timing and Storage

Lightning-Struck Pines: Fatal Diagnosis and Professional Assessment

White Pine Blister Rust & Bark Beetles: Drought Connections

Sudden White Pine Decline: Get Expert Diagnosis

Pine Tree Decline After Transplant and Dog Damage

Mysterious White Koi Deaths in Winter

Japanese White Pine – Open Pyramidal Bluish-Green