Bt

17 November 2009

A new study by Charles Benbrook shows that farmers in the US from 1996 to 2008 used 144 million kg (318 million pounds) of herbicides more then compared to conventional agriculture.
This is mainly caused by the development of herbicide resistant weeds and due to the fact that herbicide applications in conventional agriculture continuously decreased in the same period.

30 September 2008

Ch. Then & A. Lorch, Conference proceedings from Implications of GM-Crop Cultivation at Large Spatial Scales (GMLS), April 2008.

"How much Bt toxin do genetically engineered MON810 maize plants actually produce?"
Conference proceedings from Implications of GM crop cultivation at large spatial scales, University of Bremen, April 2008.

4 August 2008

South Africa’s Agriculture and Research Council (ARC) has announced their intention to apply to the SA government for permission to make GM potatoes commercially available, The potato in question is a Bt potato carrying the antibiotic resistance gene nptII as a marker - the same antibiotic resistance gene that currently holds up the approval procedure of BASF's starch potato Amflora in Europe.
Campaigners from South Africa report that ARC’s GM potato work is funded by USAID and they are afraid that this Bt potato would be used to push GM crops on other African markets, even though many countries in the region have imposed bans or biosafety restrictions on GM food; countries to which at the moment about 90% of South Africa's potato production are exported.
Organisations like the African Centre for Biosafety and BioWatch South Africa therefore call for support and and signatures to stop this approval.

10 June 2007

A. Lorch & Ch. Then, Greenpeace, June 2007.

Im folgenden Report werden einige mögliche Auswirkungen des Bt-Maises auf die Umwelt dargestellt. Selbst nach mehr als 10 Jahren kommerziellen Anbaus von Bt-Mais gibt es nur wenige Studien zur Risikoabschätzung. Zugleich werfen die meisten dieser Studien mehr neue Fragen auf, als sie beantworten.

6 June 2007

A. Lorch & Ch. Then, Greenpeace, June 2007.

The report presented here shows the many ways Bt maize impacts the environment. Even after more then a decade of commercial growing of Bt maize crops, the risk assessment studies are still few and most of them tend to raise more open questions than solving concerns.

Bt toxin
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