JEE Journal of Economic Entomology is now published by Oxford University Press. It can be accessed from the locations listed below.

Field-Evolved Insect Resistance to Bt Crops: Definition, Theory, and Data
Bruce E. Tabashnik
Journal of Economic Entomology(2009),102(6):2011
http://dx.doi.org/10.1603/029.102.0601

Oxford University Press BioOne