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水稻普通矮缩病(以下简称普矮病)和黄矮病,是安庆地区近十年来,水稻上新发生的重要病毒病害。这两种病在田间常混合发生,在一些地方其危害性甚至超过稻瘟病、纹枯病和白叶枯病,成为晚稻增产和杂交稻推广的一大障碍。例如,大流行的1978年,桐城县30多万亩晚稻,就有8万亩早栽农垦和杂交稻的病株率达50～70％,其中近万亩插花田几乎颗粒无收,全县晚稻因受普、黄矮病为害损失稻谷约2,000万斤。对于水稻病毒病的流行预测,目前国内外正在研究中。日本桐谷圭治等(1977、1978)根据迁入单季稻田的黑尾叶蝉虫量与发病关系提出了单季稻普矮病
Rice common dwarf disease (hereinafter referred to as Pu dwarf disease) and yellow dwarf disease, is the Anqing area in the past decade, an important new virus disease on rice. These two kinds of diseases often occur in the field, and in some places they are even more harmful than rice blast, sheath blight and bacterial leaf blight, and become a major obstacle to the yield increase of late rice and the promotion of hybrid rice. For example, in 1978, more than 300,000 mu of late rice was planted in Tongcheng County. As a result, 80,000 mu of early-planted and hybrid rice plants reached 50-70% of the diseased ones. Nearly 10,000 mu of inflorescences were scarcely collected, and the county Late rice due to Cape, yellow dwarf disease damage about 20 million pounds of paddy. The prevalence of rice virus disease is currently under study at home and abroad. Japan Kiya Keiji et al (1977,1978) moved into a single cropping paddy leaf cicada leafhopper quantity and incidence of single-crop rice contracted dwarf disease