EE Environmental Entomology is now published by Oxford University Press. It can be accessed from the locations listed below.

Life Table Studies of the Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), on Different Host Plants
Zhudong Liu
Environmental Entomology(2004),33(6):1570
http://dx.doi.org/10.1603/0046-225X-33.6.1570

Oxford University Press BioOne