Helicoverpa armigera shows a much higher tolerance than Heliothis virescens towards the Cry lAc toxin present in INGARD and BOLLGARD II cotton. Unlike H. virescens, the major pest of cotton in the USA, some H.

Key factors in managing transgenic Bt cottons for the future are to have an effective resistance management strategy. An essential component of any such strategy is to establish a resistance monitoring program.

Key factors in managing transgenic Bt cottons for the future are to have an effective resistance management strategy. An essential component of any such strategy is to establish a resistance monitoring program.

Genetic engineering techniques allow the transfer of novel genetic material from one organism to another and hence has the potential to augment classical plant breeding techniques by extending the gene pool accessible

Objectives * To compare the distribution of Helicoverpa life stages on conventional and INGARD cotton varieties in relation to sampling protocols.