Tree Health Implications of Long-term Strategies to Treat Emerald Ash Borer: Long-term Effects on Tree Injections and Tree Tissue

2021, Richard J. Hauer, PhD, University of WI-Stevens Point, Co-PIs Dr. Andrew Koeser, Mr. Randy Krouse, Dr. Jake Miesbauer

This project will determine the long-term effects to trees from repeated trunk injection to prevent emerald ash borer (EAB, Agrilus planipennis) mortality. Does repeated treatment through injection ultimately lead to trees that are unable to effectively take up chemical due to internal damage and/or wounding from repeated treatments? Further, do these treatments lead to enhanced decay in trees, increasing their tree risk for lower stem or root failure? Observations of bark cracking and discoloration around injection sites have been reported, but not quantified in a scientific manner. This is especially true of trees that have been repeatedly treated over long periods of time. Linking these external indicators (e.g., bark splitting, lack of wound closure, weeping wound sites) to internal damage (e.g., cross-sectional and longitudinal tree dissection), will aid urban tree managers in balancing the risk and rewards of long-term EAB management via injection.

Year: 2021

Funding Duration: 1 years

Grant Program: Hyland R. Johns Grant

Grant Title: Tree Health Implications of Long-term Strategies to Treat Emerald Ash Borer: Long-term Effects on Tree Injections and Tree Tissue

Researcher: Dr. Richard J. Hauer

Key words:

Peer Reviewed Publications from Grant:

General Audience/Trade Publications:

Professional Presentations:

For more information on this project, contact the researcher via TREE Fund at treefund@treefund.org.