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近二十年以来,无论在植物病毒病的种类上,还是在数量上均发展很快,在农业生产上造成一定的损失,到处都存在着病毒病害的问题。 到目前为止,世界上已发现的植物病毒种类达700种以上。在我国北方,50年代主要有烟草病毒病,马铃薯病毒病及新疆的大白菜病毒病。60年代小麦病毒病,瓜类病毒病,甜菜病毒病及苹果的锈果及花脸病相继发生。70年代以来,玉米病毒病,黑龙江大豆花叶病及茄科蔬菜病毒病也严重发展起来。如天津市西葫芦(笋瓜)病毒病,西安市番茄条斑病毒病,新疆及甘肃的甜瓜病毒病,以及北京地区的番茄及辣椒病毒病等均普遍严重流行过,曾一度影响到市场的供应或外销。不仅影响了产量,
In the recent two decades, no matter in the type of plant virus disease or in quantity, it has developed rapidly, causing some losses in agricultural production. There are also problems of virus disease everywhere. So far, the world has found more than 700 kinds of plant viruses. In the north of our country, there are tobacco virus disease, potato virus disease and cabbage virus disease in Xinjiang in the 1950s. In the 1960s, wheat virus disease, melon virus disease, beet virus disease and apple rust fruit and face disease occurred in succession. Since the 1970s, corn virus disease, Heilongjiang soybean mosaic disease and solanaceous vegetable virus disease have also developed seriously. Such as the Tianjin zucchini (Squash) virus disease, Xi’an City, the strip virus disease in Taiwan, Xinjiang and Gansu melon virus disease, as well as the Beijing area tomato and pepper virus diseases are generally prevalent, once affected the market supply Or export. Not only affects the yield,