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据资料报道,小地老虎[Agrotis ypsilon(Rottemberg)]在我国南岭以南冬季有为害世代;长江流域有越冬虫态,并通过标记释放成虫,证实其成虫具有远距离迁飞习性。安徽地跨长江、淮河,小地老虎第一代幼虫在我省各地发生、为害春播作物,但一代以后则很少发生为害。为了进一步搞清小地老虎在我省的发生规律,1982年,我们在望江、合肥、萧县等地进行了小地老虎越冬代与一代雌蛾卵巢系统解剖及部分越冬调查与二代幼虫调查工作,以期摸清越冬代与一代蛾源性质及动态。现将结果整理于后,以供参考。
According to the information reported, the Agrotis ypsilon (Rottemberg) was poisoned in winter in the south of Nanling in China. Overwintering the insect state in the Yangtze River valley and releasing the adults through the mark showed that the adults had long-distance migration habits. Anhui across the Yangtze River, Huaihe, the first generation of small tiger larvae occurred in various parts of our province, Harm damage spring sowing crops, but after a generation is less harmful. In order to further understand the law of the small tiger in our province, in 1982, we carried out in the Wangjiang, Hefei, Xiaoxian and other places overwintering generation and generation female ovarian ovary anatomy and part of the investigation and second-generation larvae Investigation work, in order to find out the nature and dynamics of the moth source overwintering generation and generation. Now the results sorted in for reference.