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Published online 1 November 2007 | Nature | doi:10.1038/news.2007.211
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Modified toxin helps crops kill resistant insects
New form of Bt toxin may hold off pests for longer.
A modified form of a commonly used pesticide may one day provide farmers with a new weapon against the development of resistance among insect pests.
The new compound is a modified version of the 'Bt' toxins — a class of chemicals that specifically target caterpillars and are naturally produced by the bacterium Bacillus thuringiensis.
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