在我国浙江、河北等地，稻水象甲均以一代幼虫致害早稻。由于稻水象甲幼虫生活在土下，防治难度较大，在越冬代成虫迁入峰期施药，将其消灭于产卵之前，已成为各地防治稻水象甲的主要措施之一。因此，有必要探索一套简便易行的方法，预报越冬代成虫的迁入峰期表１春季１３... In our country Zhejiang, Hebei and other places, rice water weevil a generation of larvae are caused by early rice. As the rice water weevil larvae living in the soil, prevention and control more difficult, in the winter migrant adults into peak application, to eliminate it before spawning, has become one of the major measures to prevent and control of rice water weevil. Therefore, it is necessary to explore a set of simple and easy methods to forecast the migratory peak of overwintering adult worms in Table 1 Spring 13 ...