稻秆潜蝇(Chlorops oryzae Matsumura)亦名稻秆蝇,近年来在我县为害猖獗。水稻苗期受害,叶子纵裂破碎,严重时呈枯心苗;孕穗期受害,穗头残缺变白,粒数减少,严重时仅剩扭曲的穗轴,影响产量。 稻秆潜蝇大部分以幼虫在日本看麦娘(Alopecurus japonicus Steud)、华北剪股颖Agrostis clavata Trin等杂草上取食越冬。在我县年发生3—4代,以3代为主。 Chlorops oryzae Matsumura, also known as rice stem flies, has been rampant in our county in recent years. The seedlings of rice were damaged at the seedling stage, and the leaves were longitudinally split and severely milled. The seedlings at the booting stage were damaged, the head panicles whiten, the number of the grains was reduced, and the remaining twisted stems were serious, which affected the yield. Most of rice stem moths feed on larvae overwintering on weeds such as Alopecurus japonicus Steud and Agrostis clavata Trin in Japan. Occurred in my county 3-4 generations, with 3 generations.