Chilo suppressalis has a wide distribution,and it can be found in Japan, Philippines, Vietnam, Thailand, Malaysia, India, etc. It has a wide distribution at home,too,nainly in the eastern and middle parts of China.
二化螟广泛分布，日本、菲律宾、越南、泰国、马来西亚、印度等地都有发生，国内分布也很广泛，但主要发生于华东和华中诸省区。
参考来源 - 哈尔滨地区二化螟生物学特性及防治技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The damage of Chilo suppressalis was about 2-3 times of that in monoculture paddy-field.
结果表明，稻曲螟的危害是单一栽培稻田的2-3倍。
The damage of Chilo suppressalis and Tryporyza incertulas was about 2-3 times of that in monoculture paddy-field and even more;
养蟹稻田二化螟和三化螟螟害率是常规非防治稻田的2—3倍，甚至更高；
The paper showed the main advance in non-polluted management and outbreak mechanism of Chilo suppressalis made by Hunan province in recent years.
重点概述近年湖南在有关二化螟成灾机制及无害化治理技术研究方面所取得的主要成就和经验。
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