Problem Species(Under Construction)

There are several pests that could have a major impact on the Glen Ellyn Landscape.

   Photos by Village Links Staff - Lake Ellyn 2004 -

(left)Female moth laying egg mass. (right) Gypsy moth pupae.

-GYPSY MOTHS- Gypsy moths have been seen in DuPage County for the past several years. The Village of Glen Ellyn has worked with State of Illinois through the national Slow The Spread effort to control gypsy moths.

-JAPANESE BEETLES- These destructive beetles are common in most parts of Glen Ellyn. As adults they feed on trees shrubs and many flowering plants. The adults mate and lay their eggs in lawns. The eggs hatch and develop into grubs that feed on turf grass roots. High numbers of feeding grubs can damage lawns.

Photos by Village Links Staff - #9 9 Hole Course

-EMERALD ASH BORER- This serious pest has devastated large forested areas in Michigan. It was first discovered in Detroit in 2002 and has since been found in Ohio in 2003 and northern Indiana in 2004. It attacks and kills Ash trees. In Illinois, this borer was discovered June 13, 2006 in Kane County west of St. Charles attacking 19 trees. On July 13, 2006, 16 ash trees in a 5 block area of Wilmette were found to have been infested by the borer. The Emerald Ash Borer is extremely difficult to control because the insect spends most of it's life cycle in the larval stage feeding between the bark and wood of ash trees. Any attempt to treat the tree with insecticide to control the borer would be futile because the borer disrupts the trees ability to move the insecticide through its cellular structure. The official control plan in Illinois is to identify trees that are infested with Emerald Ash Borer, identify the extent of the infestation and remove all ash trees within a half mile of the infested trees.

The following photos are from the United States Department of Agriculture.

The larval stage of the Emerald Ash Borer tunnels under the trees bark.

The adult Emerald Ash Borer does little damage to trees. It emerges from infested Ash Trees, mates and lays eggs which hatch to become the next generation of destructive borers.

The eggs of the Emerald Ash Borer are 1 mm in size.

The adults emerge through the bark of Ash Trees from small "D" shaped holes.