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Hemlock Woolly Adelgid Environmental Assessments

Last Modified: Jun 2, 2020

Release of the Predatory Beetle Scymnus coniferarum (Coleoptera: Coccinellidae), for Biological Control of the Hemlock Woolly Adelgid ( Adelges tsugae) in the Eastern United States Environmental Assessment, September 2012, and Finding of No Significant Impact [signed 9/6/12] (PDF; 953 Kb)

Proposed Field Release of Laricobius osakensis (Coleoptera: Derodontidae), a Predatory Beetle for Biological Control of Hemlock Woolly Adelgid (Adelges tsugae), in the Continental United States, Environmental Assessment, December 2009

Decision and Finding of No Significant Impact for Field Release of Laricobius osakensis Montgomery and Shiyake (Coleoptera: Derodontidae), a predatory beetle for Biological Control of Hemlock Wooly Adelgid, Adelges tsugae (Hemiptera: Adelgidae), in the Continental United States, June 2010
Amended - Finding of No Significant Impact December 2017

Hemlock Woolly Adelgid Environmental Assessments

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