The CRDC-funded project, -Ecology of Helicoverpa punctigera revisited: implications for Bt resistance-, followed our inland trip in May 2009 to determine the extent of winter breeding of the native budworm, Helicoverp

To measure the effect of biotic factors (host crop, body size) and abiotic factors (temperature, humidity) on reproductive development, fecundity and longevity of adult Heliothis punctigera and H.

Aims: (i) to quantify the contribution of alternative host crops to the dynamics of Heliothis on cotton using an elemental analysis technique developed in a previous project.