水稻潜叶蝇是水稻苗期一个重要虫害,近年来,由于耕作制度的改革,插秧期的提前,使水稻潜叶蝇由过去只限于秧田为害变为移栽后本田前期为害为主,严重影响了水稻苗期的正常发育和秋后产量。一、生活习性水稻潜叶蝇在东沟县是以成虫在杂草中越冬,每年4月末气温稳定在7～9℃时开始活动,5月中旬进入产卵盛期,在秧苗和杂草上产卵繁殖,并喜欢把卵产在秧苗和杂草稀少的地方。潜叶蝇完成一个世代需32～33天,一年能繁殖4～5代。对水稻秧苗危害较重的是越冬 Rice leaf miner is an important insect pest in rice seedling stage. In recent years, due to the reform of farming system and the advance of planting period, the leaf miner in rice has been severely affected by the damage from transplanting to transplanting Honda in the past, The normal development of rice seedling and autumn yield. First, the habits of rice Leaf miner in Donggou County is the adult overwintering in weeds, the end of April the temperature stabilized at 7 ~ 9 ℃ began activities in mid-May into the spawning period, in the seedlings and weeds Spawning eggs and breeding eggs in sparsely populated seedlings and weeds. Leaf miner to complete a generation to be 32 to 33 days a year to breeding 4 to 5 generations. The rice seedlings hardest to wintering