警惕沙漠蝗的猖獗发生

沙漠蝗在史前期就是北非、西亚和印度等热带荒漠地区的河谷与绿洲上的农业大害虫。我国云南和西藏自治区的聂拉木均有沙漠蝗的分布记载 ,虽尚未发生灾害 ,但是沙漠蝗猖獗发生的最大扩散区已达我国云南接壤的缅甸和西藏接壤的尼泊尔、印度。故我国的西藏自治区和云南省的有关边防及农业植物保护机构应予以高度重视并加强监测和预警 ,谨防沙漠蝗的发生危害

Watch out for the outbreaks of desert locusts

There are about 55 species of locust belongs to the genus Schistocerca Stl, distributed in Africa, South & North America and Asia. The desert locust Schistocerca gregaria (Forskl) is one of the world's most serious agricultural pests, it alone can invade a total area of 28 million square kilometers, 20% of the world's land surface, which includes whole or parts of 65 countries occupied by one tenth of the world's population. There are two records of desert locusts in China, one is from Yunnan, and another from Xizang (Tibet). Desert locusts migrate from the outbreak center to the borders between India, Nepal and even invading Burma. These places adjoin the southern part of Xizang and western part of Yunnan, China. Desert locusts (gregarious or solitarious phase ) may migrate through these paths to southern west part of China. All Chinese frontier stations and organizations responsible for agricultural plant protection should be vigilant for outbreaks of desert locusts