水稻铁甲虫是我县偶发性次要害虫,但80年代中期以来明显上升,1986-1990年连续5年每年为害水稻数万亩,局部稻区如马坳、渣津、溪口已成为主要害虫,笔者1992年7月在太阳升乡调查,发现一块0.4亩宅前茭白被水稻铁甲虫猖獗为害。平均每叶有稻铁甲虫成虫14—18头,最多一叶87头,其中叶正面 Rice iron beetle is a sporadic secondary pest in our county, but it has risen obviously since the mid-1980s. Tens of thousands of mu have been damaged every year for successive five years from 1986 to 1990. Some rice areas such as Ma’ao, Java and Xikou have become the major pests In July 1992, the author investigated in the rising sun of the sun and found that a 0.4-mu Qianzhai white rice was attacked by the rampant rice iron beetle. On average, there are 14-18 heads of rice beetle adults and 87 leaves at most, of which the leaves are obverse