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甜菜白带螟,即甜菜叶螟(H.recurvalis Fabr.),属鳞翅目(Lapidop(?)ra),螟蛾科(Pyralididae),白带螟属(Hymenia),是我国中部地区甜菜产区的主要害虫之一。山东省从鲁西南、鲁西北到胶东半岛均有该虫分布。据调查,该省自1971年发展甜菜生产以来每年都有不同程度的发生和危害。而且随着种植年限的增加、面积的扩大,虫害发生面积和虫口密度也逐年加大。目前全省己有二十一万亩甜菜发生了虫害。1979年高密县25,000亩甜菜全部发生了白带螟,其中5,000亩危害严重的地块只残留叶脉。由于白带螟的危害,使块根精度降低1一3度,产量损失可达10—20％,达不到糖厂加
The beetle larvae, H.recurvalis Fabr., Belongs to the genus Lapidop (?) Ra, Pyralididae, Hymenia and is the One of the major pests. Shandong Province from southwest Shandong, Shandong and Shandong Peninsula have the distribution of insects. According to the survey, the province has experienced varying degrees of occurrence and harm every year since the development of sugar beet production in 1971. And with the increase of planting years, the area is enlarged, pest occurrence area and pest population density also increased year by year. At present, there are 215,000 mu of beet pests in the province. In 1979, 25,000 mu of beet in Gaomi County belonged to whitefly borer, of which 5,000 mu of land with serious damage remained only veins. Due to the hazards of Leucanthemothis, the root lightening accuracy is reduced by 1 to 3 degrees, yield loss up to 10-20%, less than the sugar factory