西藏,地处祖国西南边境,地域广大,由于喜马拉雅山的隆起,海拔陡然升高,成为“世界屋脊”,地形和气候随之发生巨大变化。群山环绕和干燥冷凉的条件,极大地影响着作物种类和耕作制度,同样作物病害的种类和发生也具有其特殊性。解放前,百万农奴在反动的农奴制度下,受尽了三大领主的残酷压迫和剥削,生产极端落后.对所发生的自然病害现象归结于天神。长期来只是用念经、拜佛等迷信方法来祈求消灭。民主改革以来,在毛主席革命路线指引下,进行了改制和科学种地,逐步改变了农业生产的落后状况,农业科学取得较大的进展。但在防治病害方面仍处在“缺医少药”状况下。 Tibet, located in the southwestern frontier of the motherland and vast in area, suddenly rises in altitude due to the uplift of the Himalayas and becomes the “roof of the world.” The terrain and climate have undergone tremendous changes. Surrounded by mountains and dry and cold conditions, which greatly affect the crop species and farming system, the same crop disease types and occurrence also has its particularity. Before the liberation, under the reactionary serfdom system, millions of serfs suffered the cruel oppression and exploitation of the three major lords and their production was extremely backward and backward. The natural disease that occurred was attributed to the god of heaven. For a long time just use the chanting, worship Buddha and other superstition methods to destroy. Under the guidance of Chairman Mao’s revolutionary line, since the democratic reform, restructuring and scientific planting have been carried out, and the backwardness of agricultural production has been gradually changed. Agricultural science has made great progress. However, it is still under the condition of “lacking medical treatment and less medicine” in disease prevention and treatment.