Management Changes for Bollgard II and New Technology

Date Issued:2004-08-12

Abstract

Bollgard II is simply cotton with better control of Helicoverpa and the same principles of management apply to Bollgard II as for conventional cotton. This paper, highlights a few specific issues to consider for optimum Bollgard II management. Bollgard II cotton contains two different (Monsanto) Bt genes which provide control of Helicoverpa. Our eight years of Ingard were practice for what is to follow. The better efficacy of Bollgard II compared with Ingard is important for Helicoverpa control, but the prime objective is to have better Helicoverpa resistance management with two Bt genes. This change now allows a far greater proportion of Bt cotton.

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