logo150 Hamilton County Soil & Water Conservation District  

Asian Longhorned Beetle

Hamilton County Distribution


  • Adults have shiny black bodies and display white mottling
  • Antennae are long with black and white bands, and legs may be blue
  • Adults chew round exit holes in tree bark that are deep enough to stick a pencil in
  • Woodpecker damage


  • Without the ecological checks and balances found on their home turf, they rapidly reproduce
  • Larvae feed on the tree’s living tissue, cutting off the tree’s food and water transportation systems
  • With aggressive infestations, trees can die in a few years
  • Host trees include maple, elm, willow, and birch


  • Quarantine zones
  • Remove and chip infested trees
  • Insecticides are being researched
  • Slow the spread and don’t move firewood

  • 0949054Small
  • 0949055Small
  • 0949056Small
  • 1257003Small
  • 1257008Small
  • 1262009Small
  • 1265006Small
  • 1299016Small
  • 1393005Small
  • 1393012Small

The District’s accomplishments would not be possible without the support of the State of New York, Hamilton County, and FLLOWPA.