Shoppers browse store displays brimming with succulent tomatoes and plump strawberries, hoping to enjoy one last round of fresh fruit before...
WATSONVILLE, Calif. — Shoppers browse store displays brimming with succulent tomatoes and plump strawberries, hoping to enjoy one last round of fresh fruit before the Western growing season ends. There is no hint of a dark side to the blaze of red.
But strawberries are a painful subject for Guillermo Ruiz. The farmworker believes his headaches, confusion and vision trouble stem from a decade of working in the fields with methyl bromide, a pesticide that protects the berries with stunning efficiency.
Cheri Alderman, a teacher whose classroom borders a farm, fears her students could inhale a dangerous whiff of the fumigant as it drifts from the adjacent strawberry field. “A little dribble of poison is still poison,” she says.
Other nations watch as the United States keeps permitting wide use of methyl bromide for tomatoes, strawberries, peppers, Christmas trees and other crops, even though the U.S. signed an international treaty banning all but the most critical uses by 2005.
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The chemical depletes the Earth’s protective ozone layer and can harm the human neurological system.
Methyl bromide’s survival demonstrates the difficulty of banishing a powerful pesticide that helps deliver what both farmers and consumers want: abundant, pest-free and affordable produce.
The Bush administration, at the urging of agriculture and manufacturing interests, is making plans to ensure methyl bromide remains available at least through 2008 by seeking and winning treaty exemptions.
The administration’s “fervent desire and goal” is to end the use of methyl bromide, said Claudia McMurray, deputy assistant secretary of state. However, she added, “I can’t say to you that each year the numbers [of pounds used] would automatically go down.”
The reason is that farmers around the country are struggling to find a suitable replacement for methyl bromide. Alternative organic techniques are too costly, and substitute chemicals are not as effective, growers say.
“We’re not totally clueless. We’ve seen this train coming. We’ve tried every alternative and put every engine on the track, but none of them run,” said Reggie Brown, manager of the Florida Tomato Committee.
Plastic slows release
Methyl bromide is a colorless, odorless gas that usually is injected by tractor into soil before planting, then covered with plastic sheeting to slow its release into the air. It wipes out plant parasites, disease and weeds. It results in a spectacular yield, reduced weeding costs and a longer growing season.
Workers who inhale enough of the chemical can suffer convulsions, coma and neuromuscular and cognitive problems. In rare cases, they can die.
Less is known about the long-term effects of low levels of contact, said Dr. Robert Harrison, an occupational and environmental-health physician at the University of California, San Francisco.
The U.S. signed the Montreal Protocol treaty, committing to phase out methyl bromide by 2005 as part of the effort to protect the Earth’s ozone layer. A provision allows for exemptions to prevent “market disruption.”
The U.S. has used it to persuade treaty signers to allow U.S. farmers to continue using the chemical.
That exemption process leaves the U.S. 37 percent shy of the phaseout required by 2005, with at least 10,450 tons of methyl bromide exempted this year. While that compares with about 28,080 tons used in 1991, this year’s total is higher than it was two years ago.
U.S. officials are heading to a Montreal Protocol meeting in Senegal on Dec. 7 to begin negotiations on exemptions for 2007 and are preparing requests for 2008.
That is not what the treaty envisioned, said David Doniger, senior attorney with the Natural Resources Defense Council. In the 1990s, he worked on the protocol as director of climate change for the Environmental Protection Agency.
“Nobody expected you would use the exemptions to cancel the final step of the phaseout or even go backward,” Doniger said.
Among those pushing for continued exemptions are financial heavy hitters such as the family of Floyd Gottwald, vice chairman of methyl-bromide producer Albemarle Corp. of Richmond, Va. The family gave more than $420,000 to President Bush’s campaigns and to national Republican Party organizations over the past six years.
With methyl bromide probably sticking around for several years, the EPA is re-examining its health and safety standards.
The American Association of Pesticide Control Centers logged 395 reports of methyl-bromide poisonings from 1999 to 2004.
A national total remains elusive, because farmworkers often do not seek medical care.
Guillermo Ruiz and Jorge Fernandez, two California farmworkers, say they saw plenty wrong in the strawberry fields where they worked, starting with the dogs, birds and deer that lay lifeless when the workers arrived to remove plastic sheeting from fumigated fields.
“That’s how we knew this was a dangerous chemical,” Ruiz said.
His own symptoms added concern. “My eyes watered. I threw up. It gave me headaches,” he said.
Ruiz and Fernandez say they developed nervousness and depression by the time they stopped work in 2003. They saw the plastic come loose in high winds or leak when animals punctured it.
Other workers had symptoms, they said, but kept silent because they feared for their jobs.
The two are in a disability dispute with their former employer, who denies allegations that workers were forced to remove plastic sooner than required.
Growers feel hamstrung. Despite millions of dollars spent on research, no alternative addresses all soils and pests as well as methyl bromide, they say.
“It just works so good and just does so many things so well,” said Mike Miller, a strawberry grower in Salinas, Calif.