- Jan 11, 2007
- 4,870
- 73
- 251
The problem seems to be in the combination with the surfactants (For those who havent watched the video or those that missed the roundup conection... the gm crops are modified to lessen weed problems (and in this way you get stronger plants and better yield)... you DO however need to apply ROUNDUP (another Monsanto product) and many are concerned about this massive use of this pesticide and suspect it is not such a benign product as is advertised > on many ag forums I have read farmers complaining now of resistance issues and having to use three times the amount of roundup they used to ):
http://www.ibiblio.org/london/pesticide-education/Roundup-Ready.risks-from-glyphosate
From [email protected] Fri May 19 14:54:24 2000
Date: Fri, 19 May 2000 11:20:06 -0400
From: Chris McCullum <[email protected]>
To: [email protected]
Subject: Roundup Ready
"Research is already suggesting that Roundup may not be as safe as we are being led to believe.
Roundup has now been linked to several types of cancer, including non-Hodgkins' Lymphoma."
>Yes, I've heard similar reports. Although I don't have all my references off hand, here are a few
that I do have:
>Research has shown that the application of glyphosate can increase the level of plant estrogens in the bean, Vicia faba (Sanderman and Wellman, 1988). More research is needed to understand the significance of these findings as well as to better understand the neurological, immunological,developmental, and reproductive effects of herbicides, including glyphosate.
>Although adverse effects of herbicide-resistant soybeans have not been observed on certain feeding animals, genotoxic effects have been
demonstrated in other non-target organisms (Cox, 1995 a,b)
>Earthworms have been shown to be severely damaged by the glyphosate herbicide at 2.5-10 1/ha (Rebanova et al., 1996). In addition, aquatic organisms, including fish, can sometimes be severely damaged as well (Henry et al., 1994; WHO, 1994).
>Cox, C. 1995a. Glyphosate, part 1: Toxicology. J Pest. Ref. 15(3):14-20
>Cox, C. 1995 b. Glyphosate, part 2: Toxicology. J. Pest. Ref. 15(4):14-20.
>Henry et al. 1994. Acute toxicity and hazard assessment of Rodeo,
>Spreader, and Chem-Trol to
>aquatic invertebrates Act. Environ.Contam. Toxicol. 27:3):392-399.
>Rebanova et al. 1996. Effect of the herbicide Roundup on earthworms of the
>family Lumbricidae in the
>mountainous meadow ecosystems. Zootechnicka Rada, Ceske Budejovice
>13(2):63-70.
>Sanderman, H. and Wellman, E. 1988 Biologische Sicherheit 1:285-292.
>WHO, 1994. Glyphosate. Geneva, Switzerland: World Health Organization.
>Chris
http://pubs.acs.org/subscribe/journals/esthag-w/2005/sep/science/rr_inerts.html
(excerpt)
Scientists question the continued use of POEA in Roundup, citing data showing harmful effects to frogs.
ES&T
Glyphosate herbicides, such as Monsantos popular Roundup, have an environmentally friendly reputation because their active ingredients are relatively nontoxic and degrade rapidly in the environment. But University of Pittsburgh biologist Rick Relyea is challenging this view. He has found that Roundup at environmentally relevant concentrations kills or harms tadpoles because of the presence of the surfactant POEA , an ingredient that is defined as inert and doesnt appear on the label (Ecol. Appl. 2005, 15, 6186......).
Relyeas work is one of several studies that shed light on the behavior of inerts in the environment, a topic largely ignored by the U.S. EPA, say many environmental toxicologists inside and outside the agency. ..."
http://academic.evergreen.edu/curricular/ecoag2005/EcoAg Winter/Handouts/...
"Case of Roundup
(glyphosate)surfactant POEA (polyethoxylatedtallow amine), similar to spermicide
Caroline Cox publishes paper 1988 that surfactant in Roundup was poisonous to people/animals based on Japanese data
No action
2005-U of Pitt Biologist Relyea publishes that toxic to tadpoles
In article in Science News EPA admits that it doesnt spent much time testing inerts
Science News Sept 7, 2005
LD50 dont take into account:
Longtermeffects
Endocrine disruption
Immune system effects
Effects of low concentrations
Mixtures of pesticides and fertilizers
Multiple routes of exposure
Additions (surfactants and other "inert"ingredients)
Physiological stressors (malnutrition)
http://www.wtvl.net/fen/herb.htm
(summaries of several studies addressing full formulation >>> surfacant factor )
http://www.safe2use.com/ca-ipm/02-05-29a.htm
http://www.positivehealth.com/article-view.php?articleid=1761
"....
Roundup's Toxic Effects
Take Roundup as an example. The active ingredient in Roundup is glyphosate and the 'inert' ingredient is a surfactant known as POEA. However, recommendations are based on tests using glyphosate alone. Although results indicate increased incidence of liver, thyroid, and testicular cancer in rats, the Environment Protection Agency in the US does not consider the 12% incidence of testicular cancer in treated animals of statistical significance to the 4.5% incidence in the non-treated group. Hence glyophosate is considered toxicologically benign.[3] However, further tests show that Roundup is three times more lethal than glyphosate. This suggests that it is the synergistic "mix" of chemicals that may cause the problems not the single component. It should also be noted that epidemiological evidence supports a three-fold risk of non-Hodgkin's lymphoma in farm workers using Roundup. This is not an isolated case.
Other studies show that minute doses of multiple chemicals tend to be more lethal than a single chemical dose alone.[4] Unfortunately, studies on single chemicals rather than the multi-chemicals in commercial products are accepted as sufficient evidence for assessing the toxicity of products as in the case of Roundup, which has never been tested in its product form for licensing.
The saga continues. Glyphosate is persistent and can remain in the soil and contaminate it and everything grown in it for up to three years. Its use has more than doubled from 17-20 million kilograms in 1995 to 45 million kilograms in 2001. We have no method of assessing the total residue of Roundup on crops. No government agency has even considered the issue of glyphosate on GE/GM crops thus nobody has included the effects of increasing the use of glyphosate in the risk/benefit analysis carried out on GE crops.[2]
So here is the rub: if GM crops are implicated in degenerative disease, will this be due to the genetic engineering of the crops, the vast toxic residue of herbicides that these crops carry, or Roundup's effect of inhibiting the protein synthesis of the plant, leading to a deficiency of two essential amino-acids and malnutrition? Will it be a deficiency disease, a toxic disease or a disease caused through genetic modification? We have no way of knowing, and nothing in place to determine the safety. In layperson's terms, this means there is no risk management...."
http://www.ibiblio.org/london/pesticide-education/Roundup-Ready.risks-from-glyphosate
From [email protected] Fri May 19 14:54:24 2000
Date: Fri, 19 May 2000 11:20:06 -0400
From: Chris McCullum <[email protected]>
To: [email protected]
Subject: Roundup Ready
"Research is already suggesting that Roundup may not be as safe as we are being led to believe.
Roundup has now been linked to several types of cancer, including non-Hodgkins' Lymphoma."
>Yes, I've heard similar reports. Although I don't have all my references off hand, here are a few
that I do have:
>Research has shown that the application of glyphosate can increase the level of plant estrogens in the bean, Vicia faba (Sanderman and Wellman, 1988). More research is needed to understand the significance of these findings as well as to better understand the neurological, immunological,developmental, and reproductive effects of herbicides, including glyphosate.
>Although adverse effects of herbicide-resistant soybeans have not been observed on certain feeding animals, genotoxic effects have been
demonstrated in other non-target organisms (Cox, 1995 a,b)
>Earthworms have been shown to be severely damaged by the glyphosate herbicide at 2.5-10 1/ha (Rebanova et al., 1996). In addition, aquatic organisms, including fish, can sometimes be severely damaged as well (Henry et al., 1994; WHO, 1994).
>Cox, C. 1995a. Glyphosate, part 1: Toxicology. J Pest. Ref. 15(3):14-20
>Cox, C. 1995 b. Glyphosate, part 2: Toxicology. J. Pest. Ref. 15(4):14-20.
>Henry et al. 1994. Acute toxicity and hazard assessment of Rodeo,
>Spreader, and Chem-Trol to
>aquatic invertebrates Act. Environ.Contam. Toxicol. 27:3):392-399.
>Rebanova et al. 1996. Effect of the herbicide Roundup on earthworms of the
>family Lumbricidae in the
>mountainous meadow ecosystems. Zootechnicka Rada, Ceske Budejovice
>13(2):63-70.
>Sanderman, H. and Wellman, E. 1988 Biologische Sicherheit 1:285-292.
>WHO, 1994. Glyphosate. Geneva, Switzerland: World Health Organization.
>Chris
http://pubs.acs.org/subscribe/journals/esthag-w/2005/sep/science/rr_inerts.html
(excerpt)
Scientists question the continued use of POEA in Roundup, citing data showing harmful effects to frogs.
ES&T
Glyphosate herbicides, such as Monsantos popular Roundup, have an environmentally friendly reputation because their active ingredients are relatively nontoxic and degrade rapidly in the environment. But University of Pittsburgh biologist Rick Relyea is challenging this view. He has found that Roundup at environmentally relevant concentrations kills or harms tadpoles because of the presence of the surfactant POEA , an ingredient that is defined as inert and doesnt appear on the label (Ecol. Appl. 2005, 15, 6186......).
Relyeas work is one of several studies that shed light on the behavior of inerts in the environment, a topic largely ignored by the U.S. EPA, say many environmental toxicologists inside and outside the agency. ..."
http://academic.evergreen.edu/curricular/ecoag2005/EcoAg Winter/Handouts/...
"Case of Roundup
(glyphosate)surfactant POEA (polyethoxylatedtallow amine), similar to spermicide
Caroline Cox publishes paper 1988 that surfactant in Roundup was poisonous to people/animals based on Japanese data
No action
2005-U of Pitt Biologist Relyea publishes that toxic to tadpoles
In article in Science News EPA admits that it doesnt spent much time testing inerts
Science News Sept 7, 2005
LD50 dont take into account:
Longtermeffects
Endocrine disruption
Immune system effects
Effects of low concentrations
Mixtures of pesticides and fertilizers
Multiple routes of exposure
Additions (surfactants and other "inert"ingredients)
Physiological stressors (malnutrition)
http://www.wtvl.net/fen/herb.htm
(summaries of several studies addressing full formulation >>> surfacant factor )
http://www.safe2use.com/ca-ipm/02-05-29a.htm
http://www.positivehealth.com/article-view.php?articleid=1761
"....
Roundup's Toxic Effects
Take Roundup as an example. The active ingredient in Roundup is glyphosate and the 'inert' ingredient is a surfactant known as POEA. However, recommendations are based on tests using glyphosate alone. Although results indicate increased incidence of liver, thyroid, and testicular cancer in rats, the Environment Protection Agency in the US does not consider the 12% incidence of testicular cancer in treated animals of statistical significance to the 4.5% incidence in the non-treated group. Hence glyophosate is considered toxicologically benign.[3] However, further tests show that Roundup is three times more lethal than glyphosate. This suggests that it is the synergistic "mix" of chemicals that may cause the problems not the single component. It should also be noted that epidemiological evidence supports a three-fold risk of non-Hodgkin's lymphoma in farm workers using Roundup. This is not an isolated case.
Other studies show that minute doses of multiple chemicals tend to be more lethal than a single chemical dose alone.[4] Unfortunately, studies on single chemicals rather than the multi-chemicals in commercial products are accepted as sufficient evidence for assessing the toxicity of products as in the case of Roundup, which has never been tested in its product form for licensing.
The saga continues. Glyphosate is persistent and can remain in the soil and contaminate it and everything grown in it for up to three years. Its use has more than doubled from 17-20 million kilograms in 1995 to 45 million kilograms in 2001. We have no method of assessing the total residue of Roundup on crops. No government agency has even considered the issue of glyphosate on GE/GM crops thus nobody has included the effects of increasing the use of glyphosate in the risk/benefit analysis carried out on GE crops.[2]
So here is the rub: if GM crops are implicated in degenerative disease, will this be due to the genetic engineering of the crops, the vast toxic residue of herbicides that these crops carry, or Roundup's effect of inhibiting the protein synthesis of the plant, leading to a deficiency of two essential amino-acids and malnutrition? Will it be a deficiency disease, a toxic disease or a disease caused through genetic modification? We have no way of knowing, and nothing in place to determine the safety. In layperson's terms, this means there is no risk management...."
Last edited:
