2004 Michigan State University Emerald Ash Borer Trunk Injection/Spray Results
Trees in this study are being sampled in year two for evidence of residual activity of the various treatments. The strongest and most dramatic response is clear: a survey of living trees in this study reveals ash treated with Arborjet’s IMA-jet have nearly full (~80%) canopies compared to the controls and to many of the other treatments (~20% canopy). Results of the second year branch/larval analyses will be completed early in 2006.