1955年春,我们在陕西武功、扶风、永寿、蒲城等县调查油菜病虫害时,看到了两种新的油菜害虫——油菜蓝跳(虫甲)和菜茎象(虫甲)。此两种害虫均为陕西关中地区油菜上之重要害虫,发生普遍,为害也甚严重,往往造成油菜严重减产。因此,特将此两种害虫在陕西关中地区的发生和为害情况先行整理介绍,以供有关同志 In the spring of 1955, when we investigated rape diseases and insect pests in Wugong, Fufeng, Yongshou and Pucheng Counties in Shaanxi Province, we saw two new rape pests - blue rape (pest) and vegetable stem (pest). Both pests are important pests on rapeseed in the Guanzhong area of ​​Shaanxi Province, causing widespread damage and serious damage, often resulting in serious decrease in yield of rapeseed. Therefore, the two special pests in the Guanzhong area of ​​Shaanxi and the occurrence of the first case of damage for presentation, for the comrades