[Congressional Record Volume 162, Number 33 (Tuesday, March 1, 2016)]
[House]
[Page H1048]
From the Congressional Record Online through the Government Publishing Office [www.gpo.gov]
RESTORING AMERICA'S GIANTS
The SPEAKER pro tempore. The Chair recognizes the gentlewoman from
North Carolina (Ms. Foxx) for 5 minutes.
Ms. FOXX. Mr. Speaker, today I rise to talk about a blight that
nearly rendered the American chestnut extinct and recognize a teacher
in Alexander County, North Carolina, who is helping to lead in the
rebirth of these great trees.
The American chestnut was once the dominant hardwood species in the
Eastern United States. Prior to the European colonization of North
America, American chestnut trees were found in vast stands from Maine
to Florida, with the largest trees occurring in the southern
Appalachians.
When early European settlers arrived, the species was used in many
different ways, including providing timber and tools. The edible nut
was also a significant contributor to the rural economy. Families would
collect the nuts to sell and eat, and they were also used as feed for
livestock. Domesticated hogs and cattle were often fattened for market
by allowing the animals to gorge themselves on these highly nutritious
nuts.
Chestnut ripening coincided with the Thanksgiving and Christmas
holidays, and turn-of-the-century newspaper clippings show traincars
rolling into major cities that were overflowing with chestnuts to be
sold fresh or roasted. The American chestnut was truly a heritage tree.
However, the booming trade industry introduced fungal diseases that
would change the species composition of eastern North American forests.
A root rot disease, thought to have caused mortality of chestnuts in
low, moist areas infested southern populations of the American chestnut
and constricted its natural range. This fungal disease was followed by
the more commonly known chestnut blight, which spread throughout
eastern hardwood forests at a rate of up to 50 miles per year.
By the 1950s, virtually all mature American chestnut trees had
succumbed to the disease, and this catastrophe became known as one of
the worst ecological disasters in the United States. The American
chestnut has been relegated to a minor understory component, existing
as sprouts from old stumps and root systems.
Today modern techniques are being used to bring the species back from
near extinction, but the success of these efforts will be the result of
decades of genetic hybridization. The American Chestnut Foundation has
embarked on an elaborate and time-consuming breeding program to develop
a tree that can withstand blight and exhibit virtually every
characteristic of the American chestnut of the past. By backcrossing
the American chestnut with the blight-resistant Chinese chestnut, the
foundation has produced the Restoration chestnut.
Last December The American Chestnut Foundation planted four
Restoration chestnuts on the campus of Alexander Central High School in
Taylorsville. Becky Dupuis, a biotech and biology teacher with
Alexander County Schools, has partnered with the foundation to gather
information about the health, diversity, and blight resistance of these
trees. Her students will actively participate in collecting data,
documenting growth rates, and transplanting American chestnut sprouts
in Alexander County.
Ms. Dupuis should be commended for raising awareness about the
American chestnut and for her work to reintroduce these giants to their
rightful place in Alexander County and America's ecosystem.
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