DEM asks public to report sightings of invasive
beetles
Asian Longhorned Beetle, Emerald Ash Borer have
potential to cause extensive tree damage
The
Rhode Island Department of Environmental Management (DEM) is asking the public
– and in particular, those in regular contact with trees – to report sightings
of the Asian Longhorned Beetle (ALB) and Emerald Ash Borer (EAB) - invasive
insects that have the potential to cause extensive damage to area trees.
Any
insects resembling the ALB or EAB (shown below) should also be reported. To
date, there have been no confirmed sightings of these beetles in Rhode Island;
however, they have been found in nearby Worcester, Massachusetts.
The
ALB has a large, glossy black body, measuring approximately one inch long, with
irregular white spots. It also has long black and white antennae. ALB first
came to the United States in wooden shipping crates from Asia nearly 20 years
ago.
The
EAB is a small insect, measuring about a half-inch long, and metallic green in
color. It was first detected in Michigan in 2002 and has been found in
approximately 26 states since, including Massachusetts and Connecticut.
ALB
affects hardwood shade trees such as maple, ash, birch, willow and elm by
boring into the core of the tree and eventually killing it. Adult beetles
emerge from late spring to early fall, feeding on tree bark and tender twigs
and chewing their way out of the tree.
Signs
of an ALB infestation include round, dime-sized holes in the bark; oozing sap;
dead or dying tree limbs; and/or sawdust-like material made of tree shavings
and insect waste (known as "frass") around the tree.
 |
| Emerald Ash Borer |
The
EAB affects ash trees and typically emerges between June and August. DEM is
currently monitoring for EAB and has set numerous traps around the state. Signs
of an EAB infestation include small, d-shaped holes in the bark and/or squiggly
lines on the underside of the tree bark.
If
ALB or EAB is spotted or related tree damage is observed, the public is asked
to capture the insect by sliding a piece of cardboard underneath it, if
possible, and placing it in a jar or other container. The insects do not bite.
Report the finding to DEM immediately by calling 401.222.2781 or by completing
the online reporting form.
Tree-eating,
non-native insects can be inadvertently transported in untreated firewood and
other forest products. The public is reminded to purchase firewood from local
sources and not transport firewood from out of state. For more information on
invasive insects and tips to help control them, visit www.dem.ri.gov. Follow us
on Facebook at www.facebook.com/RhodeIslandDEM or on Twitter (@RhodeIslandDEM)
for timely updates.