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沙漠蝗繁殖速度快,能远距离迁飞,在十几种蝗虫中危害最为严重。目前从西非到印度,共50个国家、3200万平方千米的土地面临蝗灾威胁。自古以来,可怕的害虫都是农民的敌人。蝗虫个体危害不大,然而一旦成群结队,就变成了植物杀手——其习性甚至外表都与这个名称相称。蝗群覆盖面积可达数百平方千米,每平方千米至少有4000万只个体,有时甚至加倍。联合国粮食和农业组织(以下简称粮农组织)介绍,末龄跳蝻(蝗虫幼虫)每天约消耗2克植物,接近其自身体重。粮农组织网站显示,一吨沙
Desert locusts reproduce fast, can migrate long distances, more than a dozen locusts in the most serious harm. Currently from West Africa to India, a total of 50 countries, 32 million square kilometers of land facing the threat of locusts. Since ancient times, terrible pests are the enemies of peasants. Grasshoppers are less damaging to the individual, but once in droves they become plant killers - their habits and even appearance are commensurate with the name. Locusts cover an area of hundreds of square kilometers, with at least 40 million individuals per square kilometer and sometimes doubled. According to the Food and Agriculture Organization of the United Nations (hereinafter referred to as FAO), the late jump jump (locust larvae) consume about 2 grams of plants daily, approaching its own body weight. The FAO website shows a ton of sand