What are 'survivors'? Are they resistant to Bollgard II?, Control of Helicoverpa larvae in Bollgard II, Helicoverpa thresholds , Insecticide selection for Bollgard II crops.

With more than 90 percent of Australian Cotton grown using Bt technology, effective resistance management is vital to the longevity of Bollgard II and the yet to be released Bollgard III.

This ute guide can assist consultants and growers correctly identify their pest and beneficial insects and creates awareness of the role that native vegetation can play in IPM.

Any agent which reduces damage caused by heliothis is a valuable asset.

During the 1991-92 season, a 1 ha block of unsprayed raingrown cotton near Dalby was sampled for parasite activity in heliothis larvae.