稻瘿蚊属双翅目、瘿蚊科 ,因被害稻苗抽出的管状物称为标葱 ,故稻瘿蚊又俗称标葱虫。它是为害中稻、晚稻的一种主要水稻害虫。１为害症状初孵幼虫借露水从叶鞘间隙侵入水稻生长点 ,生长点发育受阻 ,被害叶鞘愈合成中空的葱状管 ,葱管顶部有一上尖下粗的针状物 ,心叶生长缓慢 , Ophiopogon japonicus Diptera, Oyster mosquito division, because of the damage of rice stems out of the tube called the scallion, it is also commonly known as rice gall midge Shichangshu. It is a major rice pest that infects middle and late rice. 1 Harmful symptoms The larvae of newly hatched larvae invaded the growth point of rice through the gap of the leaf sheath, the development of the growth point was blocked, the damaged leaf sheath healed into a hollow onion-shaped tube, the top of the onion tube had a sharp needle on the top and the leaflet grew slowly,