Urban Forest Pests

Both native and introduced species contribute in the quest for healthy trees.  When a species is introduced there are no natural predators to keep it in check.  Therefore the pest’s numbers can increase dramatically and dominate the native species.  With these numbers it can decimate its target food group fast.  Vigilance is necessary in keeping on top of potential infestations.

If you think your tree is stressed consider the following:

  • Over or under watering
  • Environmental impacts
  • Construction damage
  • Examine tree leaves for damage
  • Scout for feces on the ground
  • Look for holes in the bark and/or sawdust on the ground
  • Fertilizer use
  • Use of herbicides
  • Garden/lawn tool damage

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