Abstract
Over the last 50 years, North American forests have been inundated by a multitude of alien pest invasions. Among these, noteworthy invaders include the hemlock woolly adelgid (Adelges tsugae), emerald ash borer (Agrilus planipennis), chestnut blight and Dutch elm disease. These species have greatly altered both the ecological and economic values associated with forests and their management, representing perhaps the most demanding challenge facing state and federal forest pest management personnel. In this chapter, we provide an overview of the gypsy moth (Lymantria dispar) problem and describe the various approaches to managing this species, which serve as a model system for understanding the management of nonindigenous forest pests.
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