稻瘿蚊在我区发生历史悠久,但过去仅在丘陵山区及局部平原地区间歇发生,未形成灾害。近年来,发生面积不断扩大,局部地区已暴发成灾。稻瘿蚊为害水稻生长点,秧苗受到刺激,初期基部膨大,后形成“葱管”,水稻从三叶期至分蘖期均易受害,对水稻稳产高产造成很大威胁。 Rice gall midge mosquito has a long history in our district, but in the past, intermittent occurrence occurred only in the hilly and mountainous areas and the local plain areas without any disasters. In recent years, the area has been constantly expanding, some areas have been outbreaks. Rice gall midge harms the growth of rice, the seedling is stimulated, and the initial base expands to form “onion tube”. Rice is liable to suffer from the three-leaf stage to the tillering stage, which poses a great threat to stable and high-yield rice.