US Dumping Genetically Engineered Corn in Mexico

US Dumping Genetically Engineered
Corn in Mexico

Sierra Magazine
September 1, 2001
Tinkering With the Tortilla
BY: John Ross

Genetic engineering threatens Mexico's corn culture.

Dona Teresa Garcia, a Purepecha Indian great-grandmother who still farms her
own fields in the mountains of western Michoacan, Mexico, holds up newly
harvested ears of purple corn to show an old friend. Among the Purepechas,
one's corn stock is a matter of pride; her seeds date back to her
grandfathers' time. "Ours is the best corn in all Mexico," she beams.
But proud native corn may soon be a thing of the past, overwhelmed by or
cross-pollinated with the imported biotech corn flooding the Mexican market.
Corn genetically engineered to contain a toxin produced by Bt, Bacillus
thuringienis, comes courtesy of the North American Free Trade Agreement,
which opened the Mexican market to cheap grain from el norte. In 1999,
Mexico imported 5.5 million tons of corn, three times as much as before
NAFTA. No one knows how much of that corn is genetically engineered.
Cargill, the world's largest grain dealer--and the dominant grain
distributor in much of Mexico--doesn't separate Bt and natural corn imports.
Maseca, which monopolizes tortilla production on both sides of the border,
concedes that it is milling Bt corn, but can't say how much. Hector
Magallon, who directs Greenpeace-Mexico's campaign against genetically
engineered foods, guesses that since at least a quarter of U.S. corn is
Bt-embellished, Mexico imports at least the same proportion. "But it really
could be much more," he says, "since major U.S. corn exporters take pains
not to send genetically modified products to Europe or Japan, where they are
subject to prohibitions. We get what's left over."

For over 6,000 years, corn has been at the center of Mexican cultures.
Mexico gave corn to the world, and its citizens consume more than 100
billion tortillas annually--60 percent of them milled and marketed by
Maseca. Tortillas appear on every table at nearly every meal. For 13 million
children living in extreme poverty, they often constitute the entire meal.
Like the United States, Mexico has no labeling laws for biotech foods, so
Greenpeace activists wearing contamination suits have taken to invading
Mexico City super-mercados to warn customers about products from Cocoa
Krispies to Coca-Cola. But the most prominent corporate name on the list is
Maseca, founded by Roberto Gonzalez Barrera, "the King of Tortillas."
Maseca's U.S. operation (a third of which is owned by the ubiquitous Archer
Daniels Midland) does business as Mission Foods. Its huge Azteca milling
complex in Plainview, Texas, was at the hub of last year's StarLink scandal,
when Taco Bell-brand taco shells were found to contain genetically
engineered corn that the Food and Drug Administration had licensed only for
animal feed. The suspect corn flour was fashioned into taco shells at a
Pepsi-Co maquiladora in Mexicali, Mexico, which also turns out that
country's numero uno snack food, Sabritas. While the U.S.-bound taco shells
were recalled, Sabritas were not.

In addition to serving as guinea pigs for food producers, Mexicans risk the
loss of their cultural heritage. Mexico has thousands of corn varieties,
like Dona Teresa Garcia's. If Bt corn cross-pollinates with these native
stocks, it could alter their priceless genetic information. Recognizing the
danger, two years ago the Mexican government forbade the cultivation of
biotech corn.

But the modified maize is almost certainly being sown in central Mexico's
Corn Belt anyway. Migrant workers returning from the United States bring
home the "miracle" seeds for their own cornfields, and Bt corn is also
pilfered from imported animal feed. At Maseca's 50th anniversary party in
1999, Tortilla King Barrera declared that Bt corn was the future of the
corn-flour industry and claimed to have 50,000 acres under cultivation.
Bt corn also threatens a Mexican tradition even older than Teresa Garcia's
purple corn: the miraculous annual migration of millions of monarch
butterflies from the northeastern United States to fir groves 150 miles west
of Mexico City. Their larvae feed solely on milkweed, which a 1999 Cornell
University study found is rendered deadly to them when contaminated by
pollen from Bt corn. Thus Bt corn could cost Mexico not only its
agricultural heritage, but the symbol of its wildlife heritage as well.

JOHN ROSS'S latest book is The War Against Oblivion--Zapatista Chronicles
1994-2000 (Common Courage, 2001).

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