State Key Laboratory of Integrated Management of Insect Pests&Rodents;
Institute of Zoology;
Chinese Academy of Sciences;
Beijing 100080;
China;
Handan Plant-protection Station of Hebei Province;
Handan 056000;
China;
transgenic; Bt-cotton; Helicoverpa; armigera; host; crops; refuge; gene; flow; resistance; management.;