Quarantine Expanded: Michigan Wages War on Hemlock Woolly Adelgid
MDARD has expanded its quarantine for the hemlock woolly adelgid, a serious threat to Michigan's 170 million hemlock trees.
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The quarantine rules tightly control the transfer of hemlock, certain trees, forest products, and nursery stock from quarantined areas.
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Mike Philip, MDARD’s Pest Management Division Director, highlighted the aim of quarantine expansion: preserving Michigan's hemlocks.
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The U.S. Agriculture Forest Service confirmed hemlocks' key role in maintaining stream health and habitat.
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Uncontrolled hemlock woolly adelgid infestation could cause severe damage to Michigan’s hemlock trees.
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MDARD aims to limit the pest's spread and invasion of new areas by expanding the quarantine zone.
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The hemlock woolly adelgid, an aphid-like insect from Japan, can kill a tree within three to five years.
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Insecticides and mapping of hemlocks for summer treatment are key proactive measures against infestation.
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Specific insecticides, ideally under an arborist's guidance, can effectively treat infested hemlock trees.
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