Though there is a great deal of variability in the expected performance of Bt cotton depending on the environment, the regulation and marketing of the hybrids reflects a uniformity of approach that is inexplicable. Academic studies continue to talk of the importance of studying toxicity and monitoring resistance build-up even as initial resistance management plans at the farm level fail.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/bt-cotton-india-sustainable-pest-management
[2] http://admin.indiaenvironmentportal.org.in/category/author/g-v-ramanjaneyulu
[3] http://admin.indiaenvironmentportal.org.in/category/author/kavitha-kuruganti
[4] http://admin.indiaenvironmentportal.org.in/category/journal/economic-and-political-weekly
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pest-control
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cotton
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gm-crops
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biosafety
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india