Michigan’s 10 invasive insects

By Scott Nunn
Big Rapids Pioneer
June 3, 2024
Category: Forestry
Region: United States, US East

Bugs that are not native to Michigan pose a serious threat to the natural resources in the state. The include: 

  • The Asian longhorned beetle is a severe threat to numerous tree species, including poplars and maples, which are among the most abundant in Michigan.
  • The Balsam Woolly Adelgid is among two adelgid which threaten Michigan trees, specifically fir trees. 
  • The Emerald Ash Borer invasion has resulted in the death of tens of millions of ash trees in the state, and was behind one of the state’s biggest campaigns to stop the relocation of firewood to stop the spread.
  • The Hemlock Woolly Adelgid is a tiny sap-sucking bug that destroys the needles, shoots, and branches of hemlock trees, resulting in death.
  • The Mountain Pine Beetle is a destructive bark beetle that can infest most pine tree species and cause tree death.

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