小地老虎Agrotis ypsilon(Rottemberg)分布几乎遍及全国,是主要农作物的重要害虫。六十年代以来,新疆先后在墨玉、莎车和喀什等地相继发现。1980—1982年,我们对虫源能否在当地繁殖传代及越冬等进行了研究观察,总结如下。 一、成虫数量变动 每年从4月1日至11月10日,以20瓦黑光灯诱集成虫。集虫漏斗下系以塑料沙袋,每天傍晚开灯系袋,次晨取回检查。结果(见图)说明,三年中的蛾量有很大差异,1981年分别 Agrotis ypsilon (Rottemberg) is distributed throughout the country and is an important pest of major crops. Since the 1960s, Xinjiang successively discovered in Moyu, Shache and Kashgar. From 1980 to 1982, we conducted a study on whether or not the insect source can be passaged and overwintered in the area, and summarized as follows. First, the number of adult changes from April 1 to November 10 each year to 20 watts black light trap adult. Set under the funnel hopper plastic sandbags, light bulbs every evening, turn back the next morning check. The result (see figure) shows that the amount of moths varies greatly in three years, respectively in 1981