August 29, 2006
An infestation of the emerald ash borer (EAB), an exotic species
of beetle that kills ash trees, has been confirmed at Indiana Beach
campground in White County. As a result, the DNR will issue a
quarantine for most ash products and some other wood products in the
remainder of the county. The quarantine should be implemented early
Once issued, the quarantine will prohibit transportation of ash
trees and most ash tree products out of White County. The ban will
include ash nursery stock, ash logs or untreated ash lumber with the
bark attached; any type of firewood except for pine; and any
composted or uncomposted wood chips or bark chips that are one inch
Liberty and Union townships specifically will be regulated under
this quarantine, which means that ash products will not be able to
be moved out of these townships or out of the county without
permission from DNR.
?This destructive insect is very easily moved into other areas,
especially when transporting firewood,? said DNR Director Kyle
Hupfer. ?We need the public?s cooperation on this.
?We urge White County residents to adopt the letter of the
quarantine over the Labor Day weekend to prevent the unintended
spread of this beetle to their own home sites in other areas of
Indiana or even other states.?
These measures are designed to slow the spread of the infestation
while federal and university scientists look for ways to better
manage the pest in the United States.
DNR personnel and others will periodically survey the area around
the infestation. Residents of the area should be able to easily
identify these workers, who will be wearing distinctive DNR
Other infestations in Indiana have been found in St. Joseph,
LaGrange, Steuben, Randolph, Huntington, Hamilton, Marion and Adams
counties. Large infestations are present in Michigan, Ohio and
Canada. Two recent infestations have been found in Illinois, one
within Chicago and one west of Chicago.
Jodie Ellis, the exotic insects education coordinator at Purdue
University, said pinpointing exactly where the EAB is in the state
has been challenging because it often takes two to three years for
ash trees to show symptoms of infestations.
Homeowners and others who come in contact with ash trees can help
slow the spread of the EAB.
"We rely on local residents, foresters, loggers, tree removal or
trimming crews, and others to report possibly infected sites," said
Dr. Robert Waltz, state entomologist. "The public also can help us
manage the spread of this insect by not moving firewood and by
burning all campfire wood they have when they visit a campground."
Residents who see evidence of the emerald ash borer should call
Ellis, (888) EXT-INFO or (888) 398-4636; or the DNR Invasive Species
Hotline, (866) NO-EXOTIC or (866) 663-9684.
The adult EAB is slender and a bright, metallic, coppery-green
color. It is about one-third of an inch long, making it difficult to
spot in tree leaves. The adult insect is visible only during the
summer months. During the cooler months, the EAB is in its larval,
or immature, form and can only be found under the bark of ash trees.
Emerald ash borer larvae destroy live ash trees by eating the
vascular tissue, which supplies nutrients to the tree, Ellis said.
It's difficult to distinguish EAB damage from that caused by the
many native borer insects that attack ash trees. Two of the main
ways to tell EAB damage from that caused by native species are by
the EAB?s characteristic D-shaped exit holes in the main trunk of
the affected tree and by the S-shaped feeding tunnels beneath its
bark. Other symptoms include vertical splits in the bark and
increased woodpecker activity.
Additional information and photos of the EAB are available at
Purdue's Web site,