Roundup And The Sustainable Vineyard

Ξ July 14th, 2011 | → 7 Comments | ∇ A Day at a Time, Herbicides, Technology, Wine & Politics |

Gly(cine) phos(phon)ate (glyphosate), more commonly known as Roundup, has been the herbicide of first resort for farmers, horticulturist, conventional home gardeners, golf course greens managers, even the US government’s coca eradication efforts in South America (op cit.). And vineyards. According to the most recent figures I’ve been able to find, the Environmental Protection Agency’s (EPA) Pesticide Industry Sales and Usage Report 2006-2007, Glyphosate is the most popular broad spectrum herbicide used in the agricultural sector of the United States. From 2001, when an estimated 85-90 million pounds of the active ingredient were applied, to 180-185 million pounds used in 2007, Glyphosate has dominated the broad spectrum market, with Atrazine a distant second.
 
And there is a reason for Atrazine’s second place showing.
 
“Atrazine, 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine, an organic compound consisting of an s-triazine-ring is a widely used herbicide. Its use is controversial due to widespread contamination in drinking water and its associations with birth defects and menstrual problems when consumed by humans at concentrations below government standards. Although it has been banned in the European Union, it is still one of the most widely used herbicides in the world.”
 
Monsanto, Glyphosate’s company of origin (their exclusive patent expired in 2000), has long maintained the safety to both the environment and human health of the product they’ve marketed as Roundup since the 1970s. Indeed, so successful has been the multinational’s public relations campaign that even the California Sustainable Winegrowing Alliance (CSWA), reliant upon the much vaunted University of California’s Integrated Pest Management program accepts its use in vineyards. From CSWA’s Grower’s Guide.
 
“‘Integrated pest management (IPM) is an integral part of any sustainable farming program,’ as explained in the California Code of Sustainable Winegrowing Practices (SWP Workbook, page 6-1.) IPM is an approach to managing pests by combining biological, cultural, and chemical tools in a way that minimizes economic, health, and environmental risks (National Coalition on Integrated Pest Management, 1994). IPM is relevant for all farming systems, including organic and biodynamic systems.”
 
The Grower’s Guide goes on to insist that,
 
“IPM does not provide standardized prescriptions. In fact, the application of IPM changes in time and space, as pest managers adjust to circumstances. Nevertheless, IPM always is a knowledge-based, multi-faceted approach that safely maintains pests at sub-economic levels. IPM programs emphasize preventive, ecologically-based methods first. Good IPM practitioner improve over time, as their knowledge increases (SWP Workbook, page 6-1).”
 
Please note the comment above that IPM is knowledge-based; that practitioners improve as their knowledge increases. So what does the IPM recommend concerning the use of Glyphosate in vineyards? It appears to be their herbicide of choice for vineyard site preparation and established weeds. The IPM shares a grim rhetorical flourish also found in industrial or conventional agriculture: that the use of Glyphosate is a kind of “chemical mowing”.
 
With Monsanto’s history of reassurance as to the safety of Glyphosate, why cite as ‘grim’ IPM’s reference to its use as chemical mowing? Well, because IPM’s continued recommendation of Glyphosate’s is not sustainable. And here are the reasons why.
 
SUPERWEEDS
 
As has been widely reported, at least since 2005, that Glyphosate is responsible for what are now popularly known as superweeds. From The New York Times to a June, 2011 report written by Greenpeace, a scientific consensus is emerging as to the reality of superweeds. Perhaps listening to farmers might also be of assistance, as this short documentary, Farmer To Farmer does.
 
No doubt, the evolution of superweeds has been greatly accelerated by Monsanto’s creation of so-called Roundup Ready crops.
 
“Just as the heavy use of antibiotics contributed to the rise of drug-resistant supergerms, American farmers’ near ubiquitous use of Roundup has led to rapid growth of tenacious new superweeds. Farmers throughout the East, Midwest, and South have been forced to spray their fields with more toxic herbicides, pull weeds by hand, and return to more labor intensive methods like regular plowing as a result of the RR superweeds. ‘We’re back to where we were 20 years ago,’ said Eddie Anderson, a farmer from Tennessee, who will plow about one-third of his 3,000 acres of soybean fields this spring, more than he has in years.” (op. cit. New York Times, May 3, 2010)
 
But the development of superweeds vis à vis Roundup Ready corps aside, it remains a basic principle of evolutionary science that the overuse of any given pesticide, fungicide, or herbicide will eventually result in an acquired resistance among targeted life forms.
 
HUMAN HEALTH
 
Although still far from settled, the science is becoming clearer that Glyphosate is somehow associated with birth defects, according to an excellent comprehensive review of the peer-reviewed scientific literature conducted by the organization, Earth Open Source (website forthcoming).
 
POLITICAL EROSION OF SOUND ENVIRONMENTAL SCIENCE
 
In a recent WIRED article, Genetically Modified Grass Could Make Superweed Problem Worse, Brandon Keim writes
 
“On July 1 — a Friday afternoon, a time usually reserved for potentially controversial news — the U.S. Department of Agriculture announced that Scotts Miracle-Gro’s herbicide-resistant Kentucky bluegrass would be exempt from tests typically required of transgenic crops.”
 
Based on a New York Times article, the article makes clear that a very specific regulatory failure has allowed to the USDA to approve a Roundup Ready, genetically modified species of Kentucky Blue grass with no environmental regulation. The reason for this rests upon a history of political expedience and a failure of the imagination. Specific statutory protections are simply absent. In Tom Philpott’s excellent, must read, Wait, Did the USDA Just Deregulate All New Genetically Modified Crops?, he writes,
 
“Long story short, it means that the USDA theoretically regulates new GMO crops the same way it would regulate, say, a backyard gardener’s new crossbred squash variety. Which is to say, it really doesn’t.”
 
Without new legislation, we as citizens, will very quickly losing the few legal remedies that allow us resist the further contamination of the natural world by genetically modified crops. Of course, Roundup Ready plants and Glyphosate are just part of a larger story, but it is certainly true that science cannot properly be done absent the political will to implement the findings.
 
And this brings me to my final point. Inasmuch as the California Sustainable Winegrowing Alliance insists, seemingly in keeping with IPM’s a guiding principles, that its approach is indeed knowledge-based, that practitioners improve as their knowledge increases, then, in light of the material linked above, what is to become of Glyphosate’s listing as a viable tool for sustainable winegrowers? The time has come, this writer believes, to remove this chemical from consideration. It cannot be part of any sustainable practice. The science does not support it. Very simple.
 
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