The dynamics of Helicoverpa populations : can we predict ?
Fitt, Gary P., Dillon, Martin L., Gregg, Peter C., Zalucki, Myron P., Murray, , David A.H. (1992-08-11)
Helicoverpa punctigera (Wallengren) and H. armigera (Hubner) have a number of characteristics which make them highly successful pests of numerous crops in Australia, including cotton (Fitt 1989).