The persistence of blue ash in the aftermath of emerald ash borer may be due to adult oviposition preferences and reduced larval performance

We examined the health of mature blue ash, Fraxinus quadrangulata, in two forests southwestern Ohio relation to that white F. americana, and potential importance oviposition preferences larval resistance persistence ash. Both ash were largely unaffected by emerald borer 2012. By 2018, nearly 90% trees observed these had full or canopies, as opposed less than 20% encountered our studies. In 2021, maintained a similar degree canopy but no standing live ashes remained. Bark removals revealed current past feeding attempts 2018 except for one attacked killed tree 2018. All attacked. laboratory bioassay with cut stems, larvae fed grew significantly more slowly on reduced performance adult likely contribute devastated borer.