Bt and bollworms: clearing a few clouds

摘要

Ranjith et al. 1 have recently demonstrated the survival and reproduction of the bollworm Helicoverpa armigera on Bt-cotton hybrids in India. This work has been discussed in the print and electronic media for discovering tolerant insect populations. Opinions were also expressed in this journal. The intent of this note is to clarify issues, especially the ones that Ranjith et al. had to contend with since its publication