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Elongate Hemlock Scale
The elongate hemlock scale sometime known as the fiorinia scale, is a serious scaled insect pest of hemlock.
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Hemlock Rust Mite
Adult eriophid mites are minute, yellowish-orange, spindle-shaped mites with four legs.
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Hemlock Woolly Adelgid
Hemlock woolly adelgid is a destructive, introduced pest of forest and ornamental hemlock trees.
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Spruce Spider Mite
The Spruce Spider Mite is considered one of the most destructive spider mites in the United States.