Governor Proclaims Thousand Cankers Disease a Threat to Illinois' Walnut Trees
FOR IMMEDIATE RELEASE
IMMEDIATE RELEASE from Illinois Department of Agriculture
February 10, 2012
Ill. – Governor Pat Quinn has proclaimed Thousand Cankers Disease (TCD) to be a
viable threat to Illinois' native Black Walnut tree population. Quinn approved regulatory measures this month
to restrict the movement of potentially-infested products into Illinois as a
preventative measure to protect the economical and environmental well-being of
Illinois' walnut tree industry.
has 2.3 million acres of forests that may contain black walnut and be
susceptible to this disease," H.W. Devlin, Acting Director of the Illinois
Department of Agriculture, said. "Though
TCD currently is not known to be here, these measures were warranted to protect
our state's walnut resources."
Cankers Disease is a highly-contagious, invasive fungus primarily affecting
North America's Black Walnut tree population.
It is spread by the Walnut Twig Beetle (WTB), which introduces fungal
spores into the tree when they form galleries in the phloem. The fungus
colonizes the area around the galleries, forming cankers that cause a
disruption of the flow of nutrients throughout the tree, resulting in dieback,
decline, and eventually, death of the tree.
there are no current management strategies for TCD, the regulation of product
movement is necessary to protect Illinois' walnut trees and walnut tree
and businesses wishing to move regulated materials into or through Illinois
that originate in a Thousand Cankers Disease infested area now must enter into
a compliance agreement with the Illinois Department of Agriculture. The materials must be accompanied by a
phytosanitary certificate from the originating state verifying they comply with
the conditions of the compliance agreement.
All regulated materials originating in areas not known to be infested
with Thousand Cankers Disease now must be accompanied by proof of the harvest
location of the wood by county and state.
articles" are defined as the following:
plants, plant parts, and products of the genus Juglans; articles of Juglans,
including but not limited to logs, green lumber, firewood, nursery stock, bark,
mulch, burls, stumps, and packing materials;
of the above said materials passing through a known infested state, regardless
life stages of the Walnut Twig Beetle (Pityophthorus juglandis);
life stages of the Geosmithia fungus (Geosmithia morbida);
article, product, or means of conveyance when it is determined by the Illinois
Department of Agriculture to present a risk of spread of the Walnut Twig Beetle
or the Geosmithia fungus. Exceptions are nuts, nutmeat, and hulls, processed
lumber (100% bark free and kiln dried, with squared edges), and finished wood
products without bark, including but not limited to walnut furniture, musical
instruments, and gun stocks.
more information regarding TCD, visit the Illinois Department of Agriculture's
website at www.agr.state.il.us and click on the Thousand Cankers Link on the
Department of Agriculture, 217-558-1546