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近十几年来,我区的腾格里沙漠和毛乌素沙漠等地,曾先后发生灰斑古毒蛾,严重为害固沙造林的先锋树种——花棒。我们于1970-1971年对这一害虫的发生和防治进行了观察和试验,获得初步结果,兹将结果整理于后: 一、寄主植物及为害情况灰斑古毒蛾在我区主要为害花棒 Hcdysarumscoparium F. et Mey.、杨柴H. mongolicum l.,其次是沙枣Elaeagnus angustifolia L., 榆树 Ulmuspumila L.、苹果 Malus pumila Mey. 尚可为害旱
In recent ten years, the Tengger Desert and Maowusu Desert in our district have witnessed the occurrence of ancient gray moths, and the pioneer tree species, flower sticks, which have seriously damaged the afforestation. We observed and tested the occurrence and control of this pest in 1970-1971 and obtained preliminary results. We will summarize the results afterwards. First, the host plants and the damage situation Gray moths in our area are mainly Hedysarum scoparium F. et Mey., Chai H. mongolicum L., followed by Elaeagnus angustifolia L., Ulmus pumila L. and Malus pumila Mey.