TY - Acta Entomologica Sinica A1 - LIU Ze-Wen, HAN Zhao-Jun, ZHANG Ling-Chun T1 - Cross resistance of methamidophos resistant strain of brown planthopper and the biochemical mechanism responsible Y1 - 2002-08-20 JF - Acta Entomologica Sinica JO - Acta Entomologica Sinica SP - 447 EP - 452 VL - 45 IS - 4 UR - http://www.insect.org.cn N1 - ER -