黄地老虎(Euxoa segetum)在我国东北、西北、华北地区均有不同程度的发生和为害,新疆多年来发生普遍而严重,是当地粮、棉、油、糖、菜等农作物的重要害虫之一。 1977年我们从田间自然感病的黄地老虎体内分离到黄地老虎颗粒体病病毒,经鉴定属杆状病毒属B亚组。室内数十次试验证明,用浸有病毒的灭藜和白菜等饲料,饲喂1—3龄的幼虫,感病死亡率均达98%以上,5—6龄感病死亡率稍低。1977年8月在乌鲁木齐市郊区选择黄地老 Euxoa segetum has occurred and harmed to varying degrees in northeast, northwest and north China. Xinjiang has been widespread and serious over the years and is one of the important pests of crops such as grain, cotton, oil, sugar and vegetables . In 1977, we isolated the yellow tiger granulosis virus from the yellow tiger naturally infected in the field and identified it as baculovirus B subgroup. Indoor dozens of tests show that with the virus-immersed quinoa and cabbage and other feed feeding 1-3 instar larvae, the susceptible mortality reached more than 98%, 5-6-year-old susceptible mortality was slightly lower. In 1977 August in Urumqi suburbs to choose Huangdi old