The Bollgard II variety, which has not been licensed for use by commercial agriculture as of this report date was tested against several lepidopterous pest species. Results indicated that as the cotton leaf aged, increased larval mortality was recorded. The results show promise for improved control of the various tested species with Bollgard II compared to a currently registered Bollgard variety, DPL 50 B and a non-Bollgard variety, DPL 50.