Farm Progress

Emerald ash borer marches toward southern Illinois

Here’s a county-by-county look at the devastating insect’s progression across Illinois, plus a schedule for upcoming management workshops.

Holly Spangler, Prairie Farmer Senior Editor

January 10, 2018

2 Min Read
THREAT: The emerald ash borer is wreaking havoc on the state’s ash trees.Debbie Miller, USDA Forest Service, Bugwood.org

It was in 2006 that emerald ash borer first reared its ugly head in Illinois, popping up in northern Illinois and then spreading southward. While ash trees have died or been removed in large swaths across northern Illinois, many areas of southern Illinois are just beginning to deal with EAB (see map below).

According to Prairie Farmer columnist and horticulturist Fredric Miller, the insect’s larval stage kills ash trees by constructing galleries in the vascular area of the tree. That slows movement of water and nutrients to leaves and restricts flow of that food to other parts of the plant. However, Miller says not all ash species are equally susceptible; green and black ash are preferred EAB hosts, while white and blue are not as easily killed. EAB may take one to two years to complete its life cycle, depending on the ash species and overall tree health.

“Once a tree becomes infested with EAB, the tree will eventually die unless protected by a systemic chemical insecticide,” Miller says.

The University of Illinois and The Morton Arboretum’s Community Trees Program are offering several EAB workshops across southern Illinois. They’re designed to help urban and rural foresters, landowners and community decision-makers learn EAB management tactics. Topics will include EAB biology and its impact on ash trees, what signs and symptoms to look for when identifying EAB in the field, potential community impact of ash tree loss, importance of a tree inventory, importance of public support and outreach efforts, and whether or not to treat your ash tree resource. Organizers will also present and discuss the latest research on EAB management options.

Workshops run from 9 a.m. to 2 p.m., and cost $10. Preregister here, or call 630-719-2468.

• Feb. 21: Carbondale Civic Center, Carbondale
• Feb. 22: Metro East Parks and Recreation District, Collinsville
• Feb. 23: Ballard Nature Center, Altamont
• Feb. 28: Macomb City Hall, Macomb

For questions or further information, email Miller at [email protected].

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About the Author

Holly Spangler

Prairie Farmer Senior Editor, Farm Progress

Holly Spangler has covered Illinois agriculture for more than two decades, bringing meaningful production agriculture experience to the magazine’s coverage. She currently serves as editor of Prairie Farmer magazine and Executive Editor for Farm Progress, managing editorial staff at six magazines throughout the eastern Corn Belt. She began her career with Prairie Farmer just before graduating from the University of Illinois in agricultural communications.

An award-winning writer and photographer, Holly is past president of the American Agricultural Editors Association. In 2015, she became only the 10th U.S. agricultural journalist to earn the Writer of Merit designation and is a five-time winner of the top writing award for editorial opinion in U.S. agriculture. She was named an AAEA Master Writer in 2005. In 2011, Holly was one of 10 recipients worldwide to receive the IFAJ-Alltech Young Leaders in Ag Journalism award. She currently serves on the Illinois Fairgrounds Foundation, the U of I Agricultural Communications Advisory committee, and is an advisory board member for the U of I College of ACES Research Station at Monmouth. Her work in agricultural media has been recognized by the Illinois Soybean Association, Illinois Corn, Illinois Council on Agricultural Education and MidAmerica Croplife Association.

Holly and her husband, John, farm in western Illinois where they raise corn, soybeans and beef cattle on 2,500 acres. Their operation includes 125 head of commercial cows in a cow/calf operation. The family farm includes John’s parents and their three children.

Holly frequently speaks to a variety of groups and organizations, sharing the heart, soul and science of agriculture. She and her husband are active in state and local farm organizations. They serve with their local 4-H and FFA programs, their school district, and are active in their church's youth and music ministries.

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