Sustainable weed management in cotton farming systems is critical to the long-term production of profitable, high yielding cotton crops.

The Resistance Management Plan (RMP) for Australian Bt cotton aims to minimise the development of resistant Helicoverpa moths.

It is well-recognised that the pest status of Helicoverpa spp.

Resistance to insecticides has repeatedly developed in Helicoverpa armigera around the world and is of major concern to the cotton industry in Australia.

Transgenic (Bt) cotton has provided major benefits for the Australia cotton industry (e.g. control of Helicoverpa and reduced pesticide use), but the possibility of Bt resistance in these insects is a major threat.