My dissertation research was an assessment of imidacloprid treatments used as part of an integrated pest management plan to reduce the impact of the hemlock woolly adelgid (Adelges tsugae) on eastern hemlock (Tsuga canadensis) in the Great Smoky Mountains National Park. The project focused on the following:
persistence of imidacloprid and its metabolites in eastern hemlock foliage
variations in the concentration of imidacloprid and its metabolites in different size eastern hemlock trees, which included development of a model to optimize the imidacloprid dose in different size hemlocks
relationship between concentrations of imidacloprid and its metabolites on hemlock woolly adelgid densities
presence of imidacloprid in streams
potential non-target impacts to aquatic macroinvertebrate communities from imidacloprid leaching into streams
Increased knowledge of the persistence of imidacloprid over time in various size eastern hemlock trees and potential non-target impacts to surface water quality will improve management decisions and enhance eastern hemlock health in the southern Appalachians.