A Menace to Maples

Adult Asian longhorned beetle. Credit: U.S. Department of Agriculture
ALB is a black beetle between one and one-and-a-half inches long, with white spots and — as its name implies — two antennae that are even longer than its body. In addition to recognizing the beetles themselves, you can also spot them by signs of occupation on the tree. In early autumn, females dig out oval depressions in which to lay their eggs. When the larvae hatch, they burrow into the wood to feed and grow through the winter. In spring, they emerge as adult beetles, leaving tell-tale, dime-sized holes behind them.

ALB exit holes. Credit: U.S. Department of Agriculture
The maple industry, in particular, is worried. This $41 million industry has already been affected in Massachusetts, where more than 60 square miles are under quarantine, and nearby Vermont and New Hampshire are keeping a close eye for signs of the bug. Sugar and other maples also give us some of the most vibrant fall colors. One million tourists flock to New England to leaf peep every fall, bringing a billion dollars in tourism revenue with them, all of which could be at the mercy of ALB if it continues to spread.

Adult Asian longhorned beetles. Credit: U.S. Department of Agriculture
But there is hope. ALB has already been eradicated in Illinois and in certain counties of New Jersey and New York.
What can you do? Using local firewood is one of the most important ways to prevent the spread of ALB and other invasive pests. Check out http://www.dontmovefirewood.org/ to learn more.



