Airborne volatiles emitted by flowers and other vegetative plant parts that attract insects for feeding and egg-laying could be useful in pest management. Over the last 6 years or so, we have developed blends of plant volatiles that can be used as attract-and-kill for Helicoverpa moths in cotton and other crops. Our first approach to developing attractants was to screen various plants for attractiveness to these moths in the laboratory using an o1factometer (Beerwinkle et al 1996), and to identify the compounds emitted by these plants (Gregg et al 1998). Our attractant blends were not mimics of certain attractive plants but mixtures or &quote;super blends&quote; of compounds that were in common in the most attractive plants. Small-scale field trials on sweet coin and green beans in Bowen, Qld showed that attractant blends including 0.5% methomyl killed substantial numbers of Helicoverpa and other noctuid pest moths for up to 6 days after spraying (Del Socorro et al 2002). In this paper, we will describe the two large-scale field trials of attract-and kill in cotton during the 2002-2003 and 2003-2004 seasons on the property &quote;Warnara&quote;, near Cecil Plains, Qld, including the impact of these trials on moth numbers and oviposition, and the implications of attract-and-kill technology as a novel tool in the area-wide management of Helicoverpa