Tag Archives: Pest resistance

Monsanto acknowledges Bt Cotton has failed

The ongoing debate on biotechnology crops in India took a new turn on Friday when American seed firm Monsanto disclosed that cotton pest–pink bollworm–has developed resistance to its much-touted Bt cotton variety in Gujarat.

The company has reported to the regulator, the Genetic Engineering Approval Committee (GEAC), that pink bollworm has developed resistance to its genetically modified (GM) cotton variety, Bollgard I, in Amreli, Bhavnagar, Junagarh and Rajkot districts in Gujarat.

This was detected by the company during field monitoring in the 2009 cotton season.

The Bt cotton variety in question was developed using a gene–Cry1AC–derived from soil bacterium Bacillus thuringiensis. It was supposed to be resistant to pest attacks. But, of late, the pest has developed resistance to the gene.

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