How will the drought affect Helicoverpa resistance managment?

摘要

The Resistance Management Plan (RMP) for Bollgard II is designed to retard H. armigera from developing field-scale resistance. This is obviously important for the longevity of Bollgard II. New transgenic cottons may contain either or both of the two insecticidal genes in Bollgard II. This means that the protection of Bollgard II also represents the protection of future investment in other genetically modified cottons for the Australian industry. During the past two seasons more than 200,000 hectareswere planted to Bollgard II per year. The total area of cotton planted in the 2006-07 season will be considerably less than in previous years but the Bollgard II acreage will still represent around 80 per cent of the total area planted to cotton in Australia.