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NY implements quarantine to prevent spread of Emerald Ash Borers

From the New York Department of Environmental Conservation

-- New York State is implementing a quarantine to prevent the spread of the invasive Emerald Ash Borer (EAB), a tree-killing beetle. The New York State Department of Environmental Conservation (DEC) and the Department of Agriculture and Markets (DAM) are establishing a quarantine encompassing Cattaraugus and Chautauqua counties that will restrict the movement of ash trees, ash products, and firewood from all wood species in order to limit the potential introduction of  EAB to other areas of the state.

The state’s quarantine order will require restrictions on the intrastate movement of certain “regulated articles” – for instance, ash trees, certain wood products, and the Emerald Ash Borer. The order specifically defines regulated articles as:

--Entire ash trees of any size, inclusive of nursery stock.
--Any part of ash trees, including leaves, bark, stumps, limbs, branches, and roots.
--Ash lumber or ash logs of any length.
--Any item made from or containing ash wood.
--Any article, product or means of conveyance determined by APHIS, NYSDAM or the Department to present a risk of spreading
        the EAB infestation.
--Firewood from any tree species.
--Wood chips and bark mulch from any tree species, larger than 1 inch in two dimensions, whether composted or uncomposted.

New York’s order prohibits the movement of regulated articles within and beyond Cattaraugus and Chautauqua counties without certification or compliance agreements issued by DAM. The state order also restricts the movement of the regulated wood products into or through the quarantine district by requiring several provisions including, but not limited to documentation listing the origin and destination of shipments, and prohibiting transporters from unnecessarily stopping while traveling through the quarantine district. The full order will be posted at on the DEC website.

The U.S. Department of Agriculture’s Animal Plant Health Inspection Service (APHIS) will issue a parallel quarantine.  

Currently, federal EAB quarantine areas restricting the interstate movement of regulated articles are in 12 states: Illinois; Indiana; Kentucky; Maryland; Michigan; Minnesota; Missouri; Ohio; Pennsylvania; Virginia; West Virginia; and Wisconsin. Federally regulated articles (which differ slightly from New York’s list above) include ash nursery stock and green lumber, any other ash material including logs, stumps, roots, branches, as well as composted and uncomposted wood chips.  Because of the difficulty in distinguishing between species of hardwood firewood, all hardwood firewood, including ash, oak, maple and hickory are federally regulated articles.

The state’s quarantine order and emergency regulations were developed after extensive outreach and consultation with groups representing forest product manufacturers and harvesters, nurseries/landscapers, arborists, forest land owners and others potentially impacted by the decision, as well as officials from other states where quarantines have been enacted to halt the EAB’s spread.

The EAB (photo: is a small but destructive beetle that infests and kills North American ash tree species, including green, white, black and blue ash. Damage is caused by the larvae, which feed in tunnels called galleries in the phloem just below the bark. The serpentine galleries disrupt water and nutrient transport, causing branches, and eventually the entire tree, to die. Since its discovery in southeastern Michigan in 2002, the EAB is responsible for the destruction of over 70 million ash trees in the U.S.

The beetle has been moving steadily outward from its first discovered infestation in Detroit, Mich., and has now been found in 12 states and two neighboring Canadian provinces. To watch a video which answers common questions about EAB, go to:

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