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.
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
Peer Reviewed Publications from Grant:
General Audience/Trade Publications:
For more information on this project, contact the researcher via TREE Fund at firstname.lastname@example.org.