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Pine Bark Beetles: Pitch Tubes and Onyx Treatment

Four 50-60 ft pines, 30 years old in upstate NY. One dying: brown needles, bark holes, dark ant-like bugs.

Check Needle Pattern

If only inner needles brown = normal seasonal drop (pines keep 2 years' needles). If ALL needles brown = tree dead.

If Dead: Bark Beetles

  • Look for pitch tubes (sap globs) on trunk.
  • Spray trunk as high as possible with Onyx.
  • Kills beetles, protects 3 months.

If Uncertain

Call NY DEC Forestry (free forester visit). Contact: dec.ny.gov/about/558.html

Early detection saves adjacent trees.

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