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Title: Monitoring ash (Fraxinus spp.) decline and emerald ash borer (Agrilus planipennis) symptoms in infested areas

Author: Knight, Kathleen S.; Flash, Britton P.; Kappler, Rachel H.; Throckmorton, Joel A.; Grafton, Bernadette; Flower, Charles E.;

Date: 2014

Source: Gen. Tech. Rep. NRS-139. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 18 p

Publication Series: General Technical Report (GTR)

Description: Emerald ash borer (A. planipennis) (EAB) has had a devastating effect on ash (Fraxinus) species since its introduction to North America and has resulted in altered ecological processes across the area of infestation. Monitoring is an important tool for understanding and managing the impact of this threat, and the use of common methods by the many groups engaged in monitoring increases the value of monitoring data. We provide detailed methods for monitoring populations of ash trees, emerald ash borers, and lingering ash trees. These comprehensive methods can assist ecologists and managers in understanding the dynamics and effects of EAB infestations. Choice among these methods depends on the scientific and policy questions of interest and the stage of infestation being monitored.

Keywords: ash mortality, invasive species, lingering ash, ash canopy rating, dead tree breakup, prism trap, genetic resistance

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Citation:


Knight, Kathleen S.; Flash, Britton P.; Kappler, Rachel H.; Throckmorton, Joel A.; Grafton, Bernadette; Flower, Charles E. 2014. Monitoring ash (Fraxinus spp.) decline and emerald ash borer (Agrilus planipennis) symptoms in infested areas. Gen. Tech. Rep. NRS-139. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 18 p

 


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