Monday, August 3, 2009

Saving the Eastern Hemlock

Battling an exiotic pest.....
From Georgia to Maine, this once-mightly conifer is now succumbing to an exotic pest, hemlock wooly adelgid. First detected in the western United states in 1924, the adelgid caused little damage. But, when it was carried east and reached Virginia in the 1950's it began its destructive spread. An aphid-like insect, the adelgid kills eastern hemlocks within a few years after infestation, feedling on the sap at the base of their needles and cutting off their nutrients.

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Edited from The View, University of Vermont

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