对象山县山谷小平原稻区直播稻田的稻水象甲发生规律进行了系统的调查,稻水象甲越冬代成虫高峰于5月初在山坡越冬场所和直播稻田塍同期出现,之后,集中迁入直播稻田,其取食、分布和产卵表现出明显的喜水习性,在直播稻田完成一个世代约需2个月,增殖倍数7.23倍,7月底迁入越冬场所。 A systematic investigation was made on the occurrence of rice water weevil in the direct-seeded rice fields in the small plains of Shanshan mountain valley. The peak of the overwintering adults of rice water weevil emerged in the same period as the winter overwintering sites and direct-seeded rice fields in early May, In the direct-seeded rice fields, their feeding, distribution and spawning showed obvious hi-water habits. After completing a generation in direct-seeded rice fields, it took about 2 months to proliferate 7.23 times and moved to the overwintering place at the end of July.