Nightmare of the GM weeds /Argentina's bitter harvest
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Subject:     Nightmare of the GM weeds /Argentina's bitter harvest
    
Date:  4/25/2004
    From:     Stephen Tvedten <steve@getipm.com>
Organization:     Get Set Inc. (www.getipm.com) (www.thebestcontrol.com)

To:     Paul Helliker <phelliker@cdpr.ca.gov>
          Director, State of California, Department of Pesticide Regulation 

 

Nightmare of the GM weeds By Tim Utton Science Reporter Daily Mail (UK) April 15, 2004

A COUNTRY which pioneered GM farming has become a stark warning of the disaster that can result, scientists claim today.

Argentina has suffered an environmental crisis with 'superweeds' overrunning the countryside and farmers reporting health problems, experts warn.

Since 1997, genetically-modified soya has been planted over almost half the country's arable land. Now farmers are having to use more and more herbicides to control the resistant weeds, damaging the soil's fertility for generations.

A study, detailed in the respected journal New Scientist, has found that over-use of weedkillers is rendering the soil 'inert' - and directly affecting human health.

Farmers and their families living near Argentina's GM fields complain of rashes, streaming eyes and other symptoms. Some have seen their livestock die or give birth to deformed young.

Last night, British campaigners warned that Argentina's crisis highlighted the possible scenario awaiting the UK if the government pushes ahead with plans for GM cultivation. New Scientist says: 'As other (countries), including the UK, seem increasingly prepared to authorise the commercial growing of GM crops, they may be well advised to look to Argentina to see how it can go wrong.'

Last month, Environment Secretary Margaret Beckett controversially approved the growing of GM maize in Britain as animal feed.

Her approval came despite a Government-funded study which found that nine out of ten people reject commercial cultivation of GM crops without further proof of their safety for health and the environment.

Organic farmers, in particular, feared GM pollen would contaminate their crops.

Pete Riley, Friends of the Earth's GM campaigner, said: 'Sadly for Argentina, their great outdoor GM experiment is rapidly failing.

'The benefits promised by Monsanto are turning into a disaster for the country's farmers, land and environment.

'The UK must learn lessons from this ill-judged headlong dash to get Argentinian farmers converted to GM crops.'

Seven years ago, Argentina became one of the first countries to authorise GM crops, when Monsanto's Ready Roundup strain of soya was introduced.

A huge number of farmers embraced the GM strain, which is designed to be resistant to the herbicide glyphosate.

They were lured by the promise of increased productivity and decreased herbicide use, two of the main 'selling points' claimed by GM enthusiasts.

Now scientists are sounding alarm bells over the 'bitter harvest' they are reaping, New Scientist reports. The GM soya growers actually found themselves using twice as much herbicide as conventional soya farmers, largely because of the herbicide- tolerant 'superweeds' that have started to spring up.

Superweeds are created when GM crops 'swop' their resistant genes with weeds - a process shown to occur in a number of studies.

Because so much herbicide is being used, the normal bacteria found in 'healthy'fertile soil are declining and the soil itself is becoming inert, research shows.

Agricultural consultant Charles Benbrook, of the Northwest Science and Environmental Policy Centre in Idaho, said: 'The country has adopted GM technology more rapidly and more radically than any other country in the world.

'It didn't take proper safeguards to manage resistance and to protect the fertility of its soils.

'I don't think its agriculture is sustainable for more than another couple of years.'

Similar problems are occurring in parts of the U.S., according to Joe Cummins of the University of Western Ontario in Canada.

Argentina and the U.S. have led the way in GM technology, accounting for 84 per cent of the GM crops planted in the world.

Ben Ayliffe, of Greenpeace, said last night: 'Despite the promises farmers are using more and more chemicals to control weeds, poisoning the soil and damaging human health.

'Argentina rushed into accepting GM and is now reaping the whirlwind.'

Last night, Colin Merritt, biotechnology manager for Monsanto, which markets Roundup Ready soya, said it had been an 'exemplary success' in South America, both environmentally and economically.

He added: 'We're shocked that New Scientist should publish such a highly biased and inaccurate article, which only quoted from two well-known anti-GM activists, and ignored the wealth of independent scientific evidence to the contrary.

'If the problems they claimed were true in the real world, why would Roundup still be used by millions of farmers every year after 30 years of safe and effective use?'

The company's GM soya was created to be resistant to the Roundup herbicide, which had already been in use for some time.

t.utton@dailymail.co.uk  

 Argentina's bitter harvest  New Scientist vol 182 issue 2443 -17 April 2004, page 40

When genetically modified soya came on the scene it seemed like a heaven-sent solution toArgentina's agricultural problems. Now soya is being blamed for an environmental crisis that is threatening the country's fragile economic recovery. Sue Branford discovers how it all went wrong

A YEAR ago, Colonia Loma Senés was just another rural backwater in the north ofArgentina. But that was before the toxic cloud arrived. "The poison got blown onto our plots and into our houses," recalls local farmer Sandoval Filem-n. "Straight away our eyes started smarting. The children's bare legs came out in rashes." The following morning the village awoke to a scene of desolation. "Almost all of our crops were badly damaged. I couldn't believe my eyes," says Sandoval's wife, Eugenia. Over the next few days and weeks chickens and pigs died, and sows and nanny goats gave birth to dead or deformed young. Months later banana trees were deformed and stunted and were still not bearing edible fruit.

The villagers quickly pointed the finger at a neighbouring farm whose tenants were growing genetically modified soya, engineered to be resistant to the herbicide glyphosate. A month later, agronomists from the nearby National University of Formosa visited the scene and confirmed the villagers' suspicions. The researchers concluded that the neighbouring farmers, like thousands of others growing GM soya inArgentina, had been forced to take drastic action against resistant weeds and had carelessly drenched the land - and nearby Colonia Loma Senés - with a mixture of powerful herbicides.

The villagers took their neighbours to court and won an order banning further spraying. The judge also found the tenants guilty of "causing considerable harm to crops and human health". But it was a pyrrhic victory. In September, new tenants took over the land and started spraying again. When challenged, the farmers said that the ban did not apply to them, which was technically true.

Colonia Loma Senés is not an isolated case. Over the past eight years, GM soya farmers have taken over a huge proportion ofArgentina's arable land, leading to regular complaints by peasant families that their crops have been harmed by glyphosate and other herbicides. "We really don't know how much damage is being done throughout the country, because the authorities are not monitoring the situation properly," says Walter Pengue, an agro-ecologist from the University of Buenos Aires who has studied the impact of GM soya. But he predicts that such incidents will become more common as a consequence of Argentina's rush into GM soya. And other experts are warning of potential problems that include the emergence of herbicide-resistant weeds and destruction of the soil's natural micro-organisms.

GM technology is not entirely to blame forArgentina's agricultural woes. Economic problems have also played their part. But the country's experience with GM soya holds worrying lessons for the rest of the world, particularly developing countries such as Brazil, the world's second largest soya producer after the US. After refusing for years to authorise GM technology, Brazil is now rethinking its policy. Farmers in the south have been illegally planting GM soya smuggled over from Argentina, attracted by reports of higher yields and lower production costs. This has left the government with little option but to accept the cultivation of GM soya as a fait accompli. Last year it reluctantly gave temporary authorisation for the sale of GM soya on the domestic market and is now debating the finer details of permanent approval. Argentina's experience suggests that Brazil would do well to opt for tight controls with rigorous environmental impact studies.

In 1997,Argentina became one of the first countries to authorise GM crops, when Monsanto's Roundup Ready soya was introduced there and in the US. This GM variety is resistant to glyphosate, which Monsanto sells under the trade name Roundup. Argentina's farmers jumped at the new technology, which seemed just what they needed to solve some of their most pressing problems. Since the late 1980s, Argentina's largest and most fertile farming region, the Pampas, had been suffering from serious soil erosion. About half of the 5 million hectares of the Pampas's core grain-producing region was suffering severe erosion, according to the country's National Institute of Agricultural Technology (INTA), and yields on these lands had fallen by at least a third. To try and alleviate the problem, farmers were experimenting with no-tilling - a system in which seed is sown directly on the land without ploughing or any other form of cultivation. But with no ploughing, weeds were starting to get out of control, and the farmers were at a loss as to what to do.

Roundup Ready soya seemed a solution made in heaven. Farmers were able to make the no-till system work because, instead of needing five or six applications of various herbicides, they could spray only twice with glyphosate at key moments in the season. What's more, the seed companies made the move into Roundup Ready easy by supplying the seeds, machinery and pesticides in a single convenient "technological package". The new technology was also cheap. While farmers in the US paid a premium of at least 35 per cent to plant GM varieties, Argentina had not at that time signed an international patent agreement so Monsanto was able to charge only a modest fee or risk being undercut by companies making generic copies of its technology.

Driven by the world's apparently insatiable demand for soya to feed to cattle, Argentinian farmers stampeded into soya, one of the few profitable sectors in a depressed economy. Desperate to join in, urban investors rented land from impoverished smallholders and turned it over to soya. Anta, the farming group that did the damage to Colonia Loma Senés, benefited from such schemes.

By 2002 almost half ofArgentina's arable land - 11.6 million hectares - was planted with soya, almost all of it GM, compared with just 37,700 hectares of soya in 1971. Soya moved beyond the Pampas into more environmentally fragile areas, especially in the northern provinces of Chaco, Santiago del Estero, Salta and Formosa. Not even Monsanto had imagined that the move into Roundup Ready soya would be so rapid.

At first everything looked rosy. From 1997 to 2002 the area under soya cultivation increased by 75 per cent and yields increased by 173 per cent (see Diagram). In the early years there were also clear environmental benefits. Soil erosion declined, thanks to the no-till method, and farmers moved from more damaging herbicides to glyphosate, widely regarded as one of the least toxic herbicides available.

Even when world soya prices started to decline as global supply increased, Argentinian farmers continued to do well financially. Monsanto progressively cut the price of Roundup and by 2001 it was selling at less than half its 1996 price. Overall,Argentina's farmers made a profit of about $5 billion by adopting Roundup Ready soya.

Some years ago, however, a few agronomists started to sound alarm bells, warning that the wholesale and unmonitored shift into Roundup Ready soya was causing unforeseen problems. In a study published in 2001 by the Northwest Science andEnvironmental Policy Center, a non-profit organisation in Sandpoint, Idaho, agricultural economics consultant Charles Benbrook reported that Roundup Ready soya growers in Argentina were using more than twice as much herbicide as conventional soya farmers, largely because of unexpected problems with tolerant weeds. He also found that they were applying glyphosate more frequently than their US counterparts - 2.3 versus 1.3 applications a year. Saying that "history shows us that excessive reliance on any single strategy of weed or insect management will fail in the long run, in the face of ecological and genetic responses", he advised Argentinian farmers to reduce their Roundup Ready acreage by as much as half in order to cut glyphosate usage. If they did not, he warned, they would run the risk of serious problems. Among his predictions were shifts in the composition of weed species, the emergence of resistant superweeds, and changes in soil microbiology.

The warning fell on deaf ears.Argentina's economy was in deep trouble, and with soya now its main export earner the government was in no mood to intervene. The area under Roundup Ready has continued to grow, and farmers hurt by the collapse of Argentina's currency at the end of 2001 are increasingly moving into soya monoculture, as other crops for the domestic market have become unprofitable. Glyphosate use continues to rise. Pengue estimates consumption reached 150 million litres in 2003, up from just 13.9 million litres in 1997.

Initially Pengue believed that with careful rotation of crops and adequate controls over the way the herbicide was applied, the move to glyphosate would benefit the environment. But he is now concerned that the unmonitored use of this one herbicide is leading to the problems predicted by Benbrook. In a study into the impact of Roundup Ready soya on weeds, Delma Faccini of the National University of Rosario found that several previously uncommon species of glyphosate-tolerant weed had increased in abundance. In another study, agronomists from INTA's office in Venado Tuerto, nearRosario, found that farmers were having to use higher concentrations of glyphosate. For now, the problem appears to be limited to the proliferation of weeds that are naturally resistant, but some agronomists are warning that it is only a matter of time before glyphosate resistance is transferred to other weed species, turning them into superweeds.

The third problem that was predicted by Benbrook - changes in soil microbiology - also appears to be happening. "Because so much herbicide is being used, soil bacteria are declining and the soil is becoming inert, which is inhibiting the usual process of decomposition," says agronomist Adolfo Boy from the Grupo de Reflexi-n Rural, a group of agronomists opposed to GM farming. "In some farms the dead vegetation even has to be brushed off the land." He also believes that slugs, snails and fungi are moving into the newly available ecological niche.

Similar problems are occurring to some extent in theUS. According to Joe Cummins, a geneticist from the University of Western Ontario in Canada, studies of the impact of herbicides, particularly glyphosate, on soil microbial communities have revealed increasing colonisation of the roots of Roundup Ready soya with the fungus Fusarium in Midwestern fields.

Argentina's farmers are also having to deal with the proliferation of "volunteer" soya, which sprouts from seeds dropped during harvest and which cannot be eradicated with normal doses of glyphosate. This has created marketing opportunities for other agrochemical companies such as Syngenta, which has been placing adverts with the slogan "Soya is a weed" advising farmers to use a mixture of paraquat and atrazine to eradicate volunteer soya. Other companies, including Dow AgroSciences, are recommending mixing glyphosate with other herbicides, such as metsulfuron and clopyralid.

Market forces

Not all scientists inArgentina are convinced that the farmers' problems have been caused by heavy use of glyphosate, and others say that the difficulties are not yet critical. "We are experiencing some problems of tolerant weeds, but they are not on a large enough scale to affect overall yields seriously or to jeopardise the future of soya farming," says Carlos Senigalesi, director of investigative projects at INTA. He believes it is the tendency for farmers to grow nothing but soya, rather than the prevalence of GM strains, which is at the root of the problem. "Monoculture is not good for the soils or for biodiversity and the government should be encouraging farmers to return to crop rotation," Senigalesi says. "But here everything is left to the market. Farmers have no proper guidance from the authorities. There are no subsidies or minimum prices. I think we must be the only country in the world where the authorities do not have a proper plan for agriculture but leave everything to market forces."

For the first time however, INTA recently expressed concern. In a report published in December it criticised "the disorderly process of agricultural development", warning that if nothing was done, a decline in production was inevitable and that the country's "stock of natural resources will suffer a (possibly irreversible) degradation both in quantity and quality". It called for changes in farming practices in thePampas, saying that the combination of no-till with soya monoculture was "not a sustainable alternative to crop rotation farming". It also warned that, in the north, soya farming "is not compatible with the sustainability of farming".

Monsanto's Argentinian headquarters has refused to comment directly on these accusations. But the company has expressed concern about the situation, saying it believes that crop rotation is more sustainable than monoculture. It is also starting to suffer from the lack of government controls. In January it unexpectedly halted sales of Roundup Ready soya, saying that farmers were buying about half of their seeds on the black market and depriving the company of royalties.

To Benbrook, this adds up to a very worrying outlook. "Argentina faces big agronomic problems that it has neither the resources nor the expertise to solve," he says. "The country has adopted GM technology more rapidly and more radically than any other country in the world. It didn't take proper safeguards to manage resistance and to protect the fertility of its soils. Based on the current use of Roundup Ready, I don't think its agriculture is sustainable for more than another couple of years."

Argentina used to be one of the world's major suppliers of food, particularly wheat and beef. But the "soyarisation" of the economy, as the Argentinians call it, has changed that. About 150,000 small farmers have been driven off the land. Production of many staples, including milk, rice, maize, potatoes and lentils, has fallen sharply.

Many seeArgentina's experience as a warning of what can happen when production of a single commodity for the world market takes precedence over concern for food security. When this commodity is produced in a system of near monoculture, with the use of a new and relatively untested technology provided by multinational companies, the vulnerability of the country is compounded. As yet, few countries have opted for GM technology: the US and Argentina together account for 84 per cent of the GM crops planted in the world. But as others, including the UK, seem increasingly prepared to authorise the commercial growing of GM crops, they may be well advised to look to Argentina to see how it can go wrong.

 

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