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Additional Tree Species Found Vulnerable to Emerald Ash Borer Infestation

By Stein Tree
Posted on February 7, 2018

The emerald ash borer is a type of beetle that is native to northeastern Asia, but has since come to wreak devastation here in the United States. First discovered in Detroit in 2002, the voracious emerald ash borer quickly spread, leaving a trail of devastation in its wake. Last year the insect was found in Delaware, bringing the danger ever closer.

Once infected with the emerald ash borer, ash trees must have treatment or they will die and could even spread the emerald ash borer infestation to surrounding trees.

In 2011, Deb McCullough, an entomologist at Michigan State University, told Time reporters, “It is now the most destructive insect ever to invade North America. We literally cannot keep up with it.” Unfortunately, things have since gotten worse as new findings have shown that the destructive emerald ash borer is now targeting other trees.

Another Tree Species Susceptible to the Emerald Ash Borer in Wilmington, DE

In 2014, researchers started noticing emerald ash borer infestations in white fringe trees (Chionanthus virginicus). White fringe trees are a multi-stemmed tree hailing from the southeastern United States, and one we commonly find here in Wilmington, DE. In fact the fringe tree was designated as a Delaware Nursery and Landscape Association Plant of the Year.

The white fringe tree is a part of the oleaceae (olive) family and is often a big hit with gardeners and residents looking to beautify their properties, thanks to its general hardy nature and beautiful blooming period. During late spring, this tree boasts a showy display of feathery white flowers that emit a sweet, lilac-like smell. During the winter, the blue fruit of the female plants adds a bright and unique touch of color. Additionally, its hardy nature makes the white fringe an appropriate specimen for both urban and rural growth.

The fringe tree does seem to be less appealing to the emerald ash borer, indicated by the fact that the borer eats less of the leaves, but since emerald ash borer infestation can spread tree to tree, the pest could be transported unknowingly when the wood of these trees is transported.

Homeowners and officials can reduce their risk of infestation via several preventive options. The primary method is imidacloprid stem injections which can protect trees for up to three years. This method is recommended for trees that are within a 15-mile radius of a confirmed emerald ash borer infestation. If your tree has already been infected, insecticide treatments may still be effective if the ash or white fringe tree has less than 50% canopy thinning. Other trees of the olive family may also be at risk.

Stein Tree Service is Licensed to Treat Emerald Ash Borer Infestation

A company must be licensed to treat an emerald ash borer infestation, and Stein Tree Service is licensed in Delaware and Pennsylvania. To learn more about preventive treatments, or for a thorough consultation and diagnosis of your ash and white fringe trees, contact our professional arborists today.




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