The document summarizes concerns about the genetically modified maize 1507, which is tolerant to the herbicide glufosinate and produces an insecticide. It argues that the maize poses risks to the environment and biodiversity if cultivated commercially due to gaps in its risk assessment. Specifically, the effects of the maize's herbicide tolerance and impacts on non-target organisms like butterflies, bees and soil life have not been adequately studied. The European Food Safety Authority is criticized for not requiring further studies before approval and for proposing insufficient monitoring plans. Approval of the maize for cultivation is not recommended.
Plant health biosecurity on internation flights coming to Frankfurt Airport (FRA). Information for Travellers. Declaring goods.
http://pflanzenschutzdienst.rp-giessen.de/fileadmin/dokumente/pflanzenbeschau/BIOSECURITY_ON_INT_FLIGHTS.pdf
Aquaculture products can harbor pathogenic bacteria which are part of the natural microflora of the environment. A study was conducted aiming at the isolation of human pathogenic bacteria in gills, intestines, mouth and the skin of apparently healthy fish, Tilapia rendali and Oreochromic mossambicus, from the Fletcher dam. Bacterial pathogens associated with fish can be transmitted to human beings from fish used as food or by handling the fish causing human diseases. Differentiation and characterization of various isolates was based on their growth characteristics on specific culture media (biochemical and gram staining reactions). The following human pathogenic bacteria were isolated Salmonella typhi, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Vibrio cholerae, Shigella dysenteriae and Enterococcus faecalis. All the bacterial species which were isolated from the fish were also present in the initial water samples collected. The isolation of enteric bacteria in fish serves as indicator organisms of faecal contamination and or water pollution. Their presence also represents a potential hazard to humans. The mean bacterial load of the isolates was found to be markedly higher than the recommended public health and standard value of 5.0 x 106 CFU/ml which has been adopted by many countries.
For as long as humans have cultivated and stored grain we have been at risk from mycotoxins with outbreaks of Ergots being reported since the Middle Ages in epidemic proportions. Humans have linked the occurrence of mould with sickness since the 7th and 8th centuries and hence conducted a festival to celebrate the Roman God Robigus who was the protector of grain and trees in order to protect from rust and moulds.
Plant health biosecurity on internation flights coming to Frankfurt Airport (FRA). Information for Travellers. Declaring goods.
http://pflanzenschutzdienst.rp-giessen.de/fileadmin/dokumente/pflanzenbeschau/BIOSECURITY_ON_INT_FLIGHTS.pdf
Aquaculture products can harbor pathogenic bacteria which are part of the natural microflora of the environment. A study was conducted aiming at the isolation of human pathogenic bacteria in gills, intestines, mouth and the skin of apparently healthy fish, Tilapia rendali and Oreochromic mossambicus, from the Fletcher dam. Bacterial pathogens associated with fish can be transmitted to human beings from fish used as food or by handling the fish causing human diseases. Differentiation and characterization of various isolates was based on their growth characteristics on specific culture media (biochemical and gram staining reactions). The following human pathogenic bacteria were isolated Salmonella typhi, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Vibrio cholerae, Shigella dysenteriae and Enterococcus faecalis. All the bacterial species which were isolated from the fish were also present in the initial water samples collected. The isolation of enteric bacteria in fish serves as indicator organisms of faecal contamination and or water pollution. Their presence also represents a potential hazard to humans. The mean bacterial load of the isolates was found to be markedly higher than the recommended public health and standard value of 5.0 x 106 CFU/ml which has been adopted by many countries.
For as long as humans have cultivated and stored grain we have been at risk from mycotoxins with outbreaks of Ergots being reported since the Middle Ages in epidemic proportions. Humans have linked the occurrence of mould with sickness since the 7th and 8th centuries and hence conducted a festival to celebrate the Roman God Robigus who was the protector of grain and trees in order to protect from rust and moulds.
The European Commissions’ Rapid Alert System for Food and Feed (RASFF) has reported ten notifications of aflatoxin B1 found in maize of European origin since the last maize harvest in autumn 2012. That is more than in the prior harvest seasons between 2001 and 2011, where a total of nine cases of aflatoxins were reported in maize.
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Why Genetically Modified Maize Should Be Banned
1. for the people | for the planet | for the future
Maize 1507: toxic and inadequately tested
Why GM maize 1507 should be banned
Friends of the Earth Europe asbl Rue d’Edimbourg 26 | 1050 Brussels | Belgium
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December 2013
I. Summary
A genetically modified maize that is tolerant to a particular herbicide and also produces its
own insecticide has been developed by Pioneer Hi-Bred and Mycogen Seeds. The
companies requested in 2001 for the maize, called 1507, to be authorised for cultivation in
the EU. Despite a number of assessments by the European Food Safety Authority (EFSA),
many questions around the crop’s safety, its legal standing, and the European Commission’s
mandate in its authorisation, remain unanswered.
The EFSA opinions do not deliver sufficient information to duly assess the risks of the maize,
nor has EFSA fulfilled the various mandates it received from the European Commission
related to the crop. There are also substantial weaknesses in its assessment. In its
assessment of the impacts on non-target organisms, EFSA focuses on Lepidoptera (the
family of butterflies and moths) and excludes other arthropods, aquatic and soil organisms.
Despite acknowledgments that information is lacking, and that the maize poses a risk to
some Lepidoptera, EFSA still considers the maize safe for cultivation.i
In cases where adverse effects from the maize’s cultivation are recognised, EFSA suggests
inadequate and impracticable risk mitigation strategies.
In the later assessments, EFSA fails to assess the environmental impacts of the maize in
relation to herbicide tolerance – by claiming that herbicide tolerance was only intended as a
marker gene. This is in contradiction to the original notification from 2001 and to EFSA's
own, earlier opinions.
In 2009 Pioneer Hi-Bred took the European Union to court to force it to send the GM maize
for a vote in the European Council. In 2013, after the court ruled that the European
Commission had failed to act, the Commission put 1507 forward for the decision for approval
to Council. On 6 November 2013, the European Commission drafted a proposal with major
legal gaps, asking national ministers to decide about the cultivation of the maize in Europe’s
fields.
If grown commercially, there is a risk that this maize will contribute to the decline in
biodiversity as well as lead to the possible increase in use of a toxic and damaging herbicide.
2. for the people | for the planet | for the future
Herbicide tolerance is not assessed at all
European GMO law requires EU institutions to assess the changes in agricultural practices
caused by a GM herbicide tolerant plantii. EFSA still has not assessed the environmental
impacts of 1507 related to herbicide tolerance, even though this has been requested by DG
Sanco and DG Environment, and the EU’s Environment Council in 2008.iii Instead – in its
latest opinions – EFSA claims that herbicide tolerance is only intended as a marker gene.
It is in contradiction to reports from the USA where the applicant itself promotes maize 1507
as a herbicide-tolerant crop.iv Thus EFSA’s argument that the herbicide tolerance trait was
simply added as a marker gene is not only invalid,v it is also in contradiction to the original
notification from 2001. In it Pioneer clearly states that herbicide tolerance is intended for
weed managementvi, gives the herbicide concentrations that can be used in the fieldvii, and
analyses plant material from 1507 plants treated with the herbicide glufosinateviii. The legally
required environmental risk assessment of “changes in agricultural practises” however is still
lacking. The draft authorisation proposal explicitly refers to the original notification with the
described glufosinate tolerance (Article 1).
The issue is complicated by the fact that the EU rules for the herbicide glufosinate has
drastically changed in April 2013. “Glufosinate have been restricted to uses as herbicide for
band or spot”.ix This means that there is no current permission to use this herbicide on 1507,
but doesn’t stop companies lobbying to get it permitted in the future. In addition these new
rules have been implemented in only a few countries.
Adverse effects on non-target organisms not properly assessed
Risks for butterflies and moths, but which ones?
The EFSA GMO Panel (2011) states that 1507 maize and its Cry1F toxin forms a risk for at
least some butterfly and moth speciesx and that there is a lack of knowledge concerning
which of these species are at risk and where they are in an agricultural landscape.xi But,
instead of asking for basic data before granting the cultivation approval, EFSA proposed that
the applicant should collect such data as part of the post-market monitoring. In its draft
decision the EU Commission followed this advice. This seriously confuses the roles of risk
assessment and monitoring. Post-market monitoring serves the purpose of observing
whether the GMO and its interaction with the environment is as expected, e.g. whether a
specific condition only takes place as often as expected or whether management measures
work as planned. Risk assessment studies are meant for studying possible risks before the
cultivation starts, so that company and farmers know what they are monitoring.
Two years ago, EFSA confirmed there was a lack of information around 1507, and proposed
additional studies. Since then the applicant could have started to conduct such studies in
order to have more data available.
The draft proposal of the EU Commission even fails to implement the inadequate and
impracticable measures that EFSA suggested to reduce the risks for moths and butterflies.xii
Additionally the draft proposal fails to define the "conditions for the protection of particular
ecosystems/environments and/or geographical areas;" as required by Art 19 (3) of Directive
2001/18.
Conduct studies with the actual toxin
In general, most studies of the effects of the insecticidal Bt toxins have been undertaken with
the Cry1Ab and Cry1Ac toxins, including a number of studies to which the EFSA refers in its
Friends of the Earth Europe asbl Rue d’Edimbourg 26 | 1050 Brussels | Belgium
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3. for the people | for the planet | for the future
risk assessment of 1507 maize. However, 1507 produces a different toxin: Cry1F. Results of
risk assessment studies with Cry1Ab/Ac cannot simply be transferred to crops producing a
different Bt toxin, because the adverse effects on non-target organisms can differ between
these toxins. This is already the case with non-target Lepidoptera, where some butterfly
species react more sensitively to Cry1Ab than to Cry1F, while others are more sensitive to
Cry1F. It can therefore not be concluded that if Cry1Ab does not cause adverse effects on a
non-target organism, there will also be no affect caused by Cry1F.
With regard to potential effects caused by 1507 pollen, it also needs to be taken into account
that not only the Bt toxin is different but also that the concentration can be much higher.
EFSA (2011) states “Cry1F protein in pollen of maize 1507 is about 350 times the Cry1Ab
protein content expressed in maize MON 810 pollen.”xiii This means that information about
the amount of pollen from two different Bt maize plants (e.g. 1057 and MON810) does not
correlate with the amount of the respective Bt toxin that a butterfly larvae might take up; it
could be considerably more in the case of Cry1F.
There is insufficient evidence to assess impacts on bee health
According to the EFSA, there is only one peer-reviewed scientific study about the effect of
Cry1F toxin on honey bees, conducted nine years ago in the US, in which Bt maize pollen
was fed to bee larvae in the laboratory.xiv Other studies did not use the Bt toxin Cry1F. There
are therefore no studies in the field, no studies in Europe, and no study that has been
undertaken any more recently than nine years ago. This is not a sufficient basis to assess
the safety of 1507 cultivation for bees or other pollinators in the EU.
There are no studies assessing the impact of 1507 on soil organisms
To assess possible adverse effects on soil organisms we need to know how much Bt toxin is
released into the soil and how long it stays there, as well as studying effects on a range of
soil organisms such as earthworms and mycorrhiza. It appears that no studies on soil
organisms have been undertaken with 1507 plant material or Cry1F toxin.
There is insufficient evidence to assess aquatic impacts
To assess the possible adverse effects on soil organisms we need to know whether 1507
cultivation will have adverse effects on aquatic organisms. Such studies still need to be
undertaken; simply referring to lab studies undertaken with Cry1Ab is insufficient, since the
results could be quite different in the field with Cry1F.
Flawed monitoring in the draft proposal
Whilst EFSA recommended several studies to determine the sensitivity and risk to exposed
non-target Lepidopteran species, and to confirm the level of exposure of non-target
Lepidoptera, this is not required in the draft application. There are no baselines established
by the applicant that could be used for the monitoring for those non-target organisms that are
at risk. Additionally the Commission doesn’t require any protection or measures for highly
sensitive butterflies and moths.
Friends of the Earth Europe asbl Rue d’Edimbourg 26 | 1050 Brussels | Belgium
Tel. +32 2 893 10 00 | Fax +32 2 893 10 35 | info@foeeurope.org | www.foeeurope.org
4. for the people | for the planet | for the future
Friends of the Earth Europe asbl Rue d’Edimbourg 26 | 1050 Brussels | Belgium
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II.Conclusions
There are substantial gaps in the risk assessment and risk management of 1507 maize. If
grown commercially, there is a risk that this maize will contribute to the decline in biodiversity
as well as lead to the possible increase in use of a toxic and damaging herbicide.
The failings in the assessment and risk management include:
1. The glufosinate tolerance of 1507 is not assessed by EFSA as legally required. In the
draft proposal for the authorisation the European Commission deleted any information
concerning the crop’s glufosinate resistance. Farmers are not informed that they
should not spray the herbicide on the maize, nor will any monitoring of development of
resistance amongst weeds be undertaken. Monitoring of the actual use of glufosinate
on fields cultivated with maize 1507 is lacking. The Commission incorrectly assumes
that new legal constraints on the use of the herbicide will dissuade farmers from using
the herbicide on the maize.
2. There is a long list of possible adverse effects on non-target organisms that have not
been assessed in the different EFSA opinions on 1507.
3. EFSA’s opinion asserts that a potential risk for butterflies and moths exists. But
instead of concluding that 1507 cannot be assessed as safe, EFSA suggests
conducting further studies after authorisation for commercial cultivation.
4. EFSA’s proposed risk mitigation measures intended to reduce the risks, are doubtful
as to whether they would be effective, practicable or enforceable.
5. The monitoring plan of the draft decision of GM maize 1507 is even weaker than
EFSAs mitigation plan. It requires the cooperation of existing surveillance networks
without specifying them, or without any indication what happens if these networks
don't agree to do so. There are no baselines established by the applicant that could
be used for the monitoring for those non-target organisms that are at risk. Additionally
the risk managers don’t require any protection or measures for highly sensitive
butterflies and moths.
6. The draft proposal fails to define the "conditions for the protection of particular
ecosystems/environments and/or geographical areas;" as required by Art 19 (3) of
Directive 2001/18.
Prepared by Antje Lorch, edited by Ronnie Hall, Mute Schimpf, Adrian Bebb|
December 2013
Friends of the Earth Europe gratefully acknowledges financial assistance of European Commission’s DG Environment. The
contents of this document are the sole responsibility of Friends of the Earth Europe and cannot be regarded as reflecting
the position of the funder mentioned above. The funder cannot be held responsible for any use which may be made of the
information this document contains.
5. for the people | for the planet | for the future
i EFSA opinion February 2012, page 2; “reductions in populations of certain highly sensitive non-target lepidopteran
species where high proportions of their populations are exposed over successive years to high levels of maize 1507 pollen
deposited on their host-plants. In situations where highly sensitive non-target Lepidoptera populations might be at risk,
the EFSA GMO Panel recommends that mitigation measures are adopted to reduce exposure.
http://www.efsa.europa.eu/en/efsajournal/doc/2429.pdf
ii Directive 2001/18 Annex II demands in its parts of steps in the environmental risk assessment to assess— “changes in
management, including, where applicable, in agricultural practices.”
iii In September 2008, Heads of DG Environment and DG SANCO asked EFSA to clarify the interplay between GM
directive 2001/18 and Pesticide Directive 91/414. In their letter to the Executive Director of EFSA they state that, “the
consequences of the change in agricultural practices due to herbicide use of GM HT plants have to be duly considered
within the environmental risk assessment under Directive 2001/18” (European Commission 2008, emphasis in the
original).
In December 2008, the Environment Council of the European Union adopted conclusions on GMOs in which it considers
“4. NOTES WITH SATISFACTION that [the EU Commission’s mandate to EFSA includes examination of the
criteria and requirements, including GMPs that produce active substances covered by directive 91/414/EEC and
herbicide-tolerant GMPs; UNDERLINES in particular the need to study the potential consequences for the
environment of changes in the use of herbicides caused by herbicide-tolerant GMPs [...]”).
iv Dow AgroSciences (2007): TC1507, Insect-Protected Maize (Corn), Technical Bulletin.
http://msdssearch.dow.com/PublishedLiteratureDAS/dh_00a4/0901b803800a4d0c.pdf?filepath=herculex/pdfs/noreg/010
-16438.pdf&fromPage=GetDoc
v In 2007 the applicant informed the European Commission that the maize would not be marketed as glufosinate tolerant
GM maize and is now presented by the Commission as a BT maize containing only a marker gene.
http://www.saveourseeds.org/fileadmin/files/SOS/Dossiers/Stop_the_Crop/COM_draft_approval_1507_D003697-01-00-
EN.pdf
vi Original application “Question 19: … Field trials show that 1507 maize will tolerate field application rates of 1600 g
a.i./ha of glufosinate-ammonium herbicide without showing any phytotoxity symptoms. Tolerance to glufosinate-ammonium
herbicide provides for improved weed management.” (C/ES/01/01 SNIF, 2001)
vii Original application (C/ES/01/01 SNIF, 2001) Pioneer-Hi Bred and Mycogen grew 1507 in field trials for the
notification with and without the application of glufosinate, stating an “improved weed management”. They assessed the
tolerance level “at field application rates of 1600 g a.i./ha of glufosinate-ammonium herbicide without showing any
phytotoxity symptoms”
viii EFSA opinion 2005 page 8; “In summary, the analysis of nutrient composition of kernels from maize line 1507
(glufosinate-treated and non-treated) occasionally revealed statistically significant differences in some compounds.”
ix Implementing regulation 365/2013 of constraint use of the herbicide glufosinate http://eur-lex.
europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2013:111:0027:0029:EN:PDF
x EFSA opinion February 2012, page 2; “reductions in populations of certain highly sensitive non-target lepidopteran
species where high proportions of their populations are exposed over successive years to high levels of maize 1507 pollen
deposited on their host-plants. In situations where highly sensitive non-target Lepidoptera populations might be at risk,
the EFSA GMO Panel recommends that mitigation measures are adopted to reduce exposure.
http://www.efsa.europa.eu/en/efsajournal/doc/2429.pdf
xi EFSA opinion February 2012, p. 2; “Nevertheless, the EFSA GMO Panel concludes that there is a risk to certain
highly sensitive non-target Lepidopteran species where high proportions of their populations are exposed over
successive years to high levels of maize 1507 pollen deposited on their host-plants.”
( http://www.efsa.europa.eu/en/efsajournal/doc/2429.pdf
xiiWe contend that such an assessment is best carried out using empirical data, which invites scientific review and
integration of knowledge, rather than on expert opinion, on which a qualified assessment is not possible,
Holst N, Lang A, Lövei G & Otto M (2013): Increased mortality is predicted of Inachis io larvae caused by Bt-maize
pollen in European farmland . Ecological Modelling 250: 126–133
http://www.sciencedirect.com/science/article/pii/S0304380012005315
GM Freeze (2011): In two minds. Report. http://www.gmfreeze.org/publications/briefings/125/
xiii EFSA opinion February 2012, page 11, http://www.efsa.europa.eu/en/efsajournal/doc/2429.pdf
xiv Hanley AV, Huang ZY & Pett WL (2003): Effects of dietary transgenic Bt corn pollen on larvae of Apis mellifera and
Galleria mellonella. Journal of Apicultural Research 42: 77-81. http://www.ibra.org.uk/articles/20080613_28
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