席草螟(Bradina sp.)土名席草虫、席草蛀心虫,是我县席草的主要害虫。过去由于对席草螟发生规律不了解,防治上缺少办法,使席草为害面积和危害程度逐年有扩大和加重的趋势,据调查,一般常年席草减产在三成左右,1973年受害严重的田,减产七成以上,严重影响了席草生产。为了认真贯彻以粮为纲,全面发展的方针,提高席草的 The grass borer (Bradina sp.) Soil names grass worm, grass worm borers, is the main pest of my county seat grass. In the past, due to the lack of understanding of the laws of the grass moth and the lack of ways to prevent and control it, the damage area and harm degree of the grass mills tended to widen and aggravate year by year. According to the survey, about 30% , Cut more than Qicheng, a serious impact on the grass production. In order to conscientiously implement the guideline of taking grain as the key link and all-round development, we should increase the grass