A new study confirms that the Cry1Ab Bacillus thuringiensis (Bt) toxin present in genetically modified (GM) crops kills the larvae of the two-spotted ladybird (Adalia bipunctata L.), a species that GM supporters claim to be unaffected by the toxin.
The study raises questions regarding the integrity of previous work published by GM proponents, whose experimental protocols were re-tested and shown to lack the scientific rigour required to pick up signs of toxicity even in target insects that the pesticide is designed to kill.
Bt toxins are present in many GM crops including cotton and maize. Monsanto’s Mon 810 Bt maize is currently approved for cultivation in Europe, although it has been banned by individual nations including Hungary, France, Austria, Germany, Greece and Luxembourg due to health and environmental concerns. Many previous studies have found effects on health and the environment