The Emerald Ash Borer (EAB) is an invasive species native to Asia and was discovered in the Windsor area of Canada in summer 2002. Risk assessments have shown that EAB has the potential to spread across the North American population of ash trees (Fraxinus spp.), causing considerable economic and environmental damage. Due to the nature of the pest, we expect systemically injected insecticides will provide an environmentally acceptable option for controlling EAB in urban settings. A Systemic Tree Injection Tube (STIT) was used to apply Imidacloprid and Azadirachtin, a Neem extract at several dosages to green ash (Fraxinus pennsylvanica var. lanceolata). Efficacy was evaluated by examining trees for larval abundance and through bioassays of EAB mortality on leaves from treated trees.
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