TY - Acta Entomologica Sinica A1 - XU Xiao-Feng1, MA Fei2, DING Zong-Ze3, CHENG Xia-Nian2 T1 - A regression model of phase space for predicting brown planthopper (Nilaparvata lugens Stal ) occurrence Y1 - 2002-08-20 JF - Acta Entomologica Sinica JO - Acta Entomologica Sinica SP - 548 EP - 551 VL - 45 IS - 4 UR - http://www.insect.org.cn N1 - ER -