1990年6月中旬,吉林省洮南市大通乡新开垦的18公顷盐碱地水田,发生稻水蝇虫。开始发现个别稻池的秧苗叶片变黄,部分秧苗死去,拔出变黄秧苗,即见有稻水蝇幼虫钩在稻根上,在水层中也发现有稻水蝇幼虫活动。4-5天后虫量大增,遍及全田,最多的有30余头幼虫及蛹成串地钩在一条稻根上,稻苗成穴死亡,造成漂秧,由于防治的较及时,避免了毁灭性灾害,但遭稻水蝇严重危害,使残存稻苗的生长受到极大影响,造成了巨大损失。 In mid-June 1990, an 18-hectare saline-alkali paddy field newly cultivated in Datong Township, Taonan City, Jilin Province, developed a rice fly. Beginning to find the individual rice pond seedling leaves turn yellow, part of the seedlings die, pull out yellowing seedlings, that is, there is a rice larvae hooked on the rice root larvae, also found in the water layer of rice fly larvae activity. 4-5 days after the surge of insects, throughout the whole field, up to more than 30 head larvae and pupae in a string hooked on a rice root, rice seedlings died, resulting in drift seedlings, due to more timely prevention and control, to avoid destruction However, it was severely endangered by rice water flies, which greatly affected the growth of the remaining rice seedlings and caused huge losses.