The pests that GM Bt cotton was meant to safeguard against are back, virulently and now pesticide-resistant – destroying crops and farmers

Policymakers in every country considering introducing GM Bt cotton should read this article. It's long but revealing.

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* Bt-cotton occupies 90 per cent of the land under cotton in India – and the pests that this GM variety was meant to safeguard against, are back, virulently and now pesticide-resistant – destroying crops and farmers

The black scars dotting the green bolls of a wilting cotton plant on Ganesh Wadandre’s farm carried a message for scientists working on the "white gold": go find a new antidote.

“Those are the entry points,” said Wadandre, a five-acre farmer who is well regarded in Amgaon (Kh) village of Wardha district. The worm, he added, must have drilled into the boll from these points.