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Helicoverpa and resistance management for transgenic cotton

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Insect-resistant cotton is often called 'Bt cotton'... The Australian cotton industry was well aware that the adoption of Helicoverpa -resistant varieties that would be expressing the Bt toxin throughout the length of the cotton season posed a considerable resistance risk... A comprehensive resistance management package has been negotiated between industry, regulators and the owners of the GM technology to ensure that growing practices have been adopted to protect the longevity of the Bt toxins used in the current GM cotton varieties...
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