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Utilizing an entomopathogenic virus on alternate hosts as the main pre–crop treatment, a pilot test was conducted in 1990 and 1992 to manage Heliothis virescens (F.) and Helicoverpa zea (Boddie) in cotton in a 259 square kilometer area in the Mississippi Delta.  The results of these two programs are reviewed.  In addition, this program will be expanded in 1994 to a 1,036 square kilometer area.  In-season control measures in cotton within the treated area will also be evaluated for additive effects.  These include the use of transgenic cotton, nectariless cotton, release of parasites, and pre–square treatments with Bacillus thuringiensis, virus, and/or entomopathogenic nematodes.  This program is designed to reduce pesticide output and aid in resistance management while maintaining grower profitability.

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