Asian Longhorn Beetle Found In Boston!




Many people consider the Asian Longhorn Beetle to be the most significant threat to Massachusetts forests -- much worse than global warming, much faster and almost as hard to stop once it gets going. The only way to control the ALB is to find it before it gets as established as it became in Worcester, where more than fifteen thousand trees have been destroyed. That means we should all know how to identify it.                            July 6, 2010

--from the Massachusetts Introduced Pests Outreach Project 

This weekend a small infestation of Asian longhorned beetle was found in Jamaica Plain (Boston). The site is at Faulkner Hospital, just across from the Arnold Arboretum. Six infested maple trees were found so far, in close proximity to each other, and have already been removed by USDA/DCR. Surveys will continue this week to determine the extent of the infestation.

Be on the lookout for:

  1. Adult Asian longhorned beetles (shiny black beetles with white spots and long, banded antennae)
  2. ALB exit holes (dime-sized, perfectly round holes, especially in maple, but also in birch, elm, horse chestnut, willow and other hardwood trees, but not oak)
  3. ALB egg-laying sites (divots in the bark ranging in size from 1/4 to 3/4 inches across - fresh pits often have oozing, foaming sap)

Anyone seeing anything suspicious should report it immediately at or call toll-free: 1-866-702-9938. Take photos if you can.

If you are with an environmental group or other organization that needs outreach materials, the Mass. Dept. of Agricultural Resources will provide you with ID cards, fact sheets, etc., for free. MDAR can also provide public speakers for ALB training sessions. Contact or call 617-626-1735 for more information.

Spread the word, not the beetle! Get all the latest ALB news.

Printable factsheets and a simple identification page can be found here:

Read more about the efforts to stop the ALB in Boston in the recent Boston Globe article at: