Regional Comparison of Overwintering Mortality, Fecundity, and Virulence in the Hemlock Woolly Adelgid

Throughout the eastern United States, the spread of the hemlock woolly adelgid, Adelges tsugae Annand, has caused high mortality of eastern hemlocks Tsuga canadensis (L.). We recorded overwintering survival and fecundity of A. tsugae, and tree new growth at sites in the northeastern and southeastern...

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Bibliographic Details
Main Author: Roehrig, Artemis Demas
Format: Others
Published: ScholarWorks@UMass Amherst 2013
Subjects:
Online Access:https://scholarworks.umass.edu/theses/977
https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2131&context=theses