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1982～1984年研究结果,广东水稻瘤矮病毒田间的自然越冬寄主植物主要是再生稻、自生稻,带毒率分别为63.95～100%和28.57～41.20%;还新发现看麦娘(Alopecurus aequulis)是越冬寄主植物,但只个别株发病,故不重要。人工接种成功的寄主植物还有小麦(Triticum aestivum)、燕麦(Arena sativa)、野生稻(Oryza rufipogon)和玉米(Zea mays)。玉米是本研究接种成功的新寄主。稗草(Echinochloa crus—gallis)和李氏禾(Leersia hexandra)不受侵染。在自然情况下,迄未发现越冬的小麦和野生稻有感染此病的。本病毒的介体昆虫最主要的是电光叶蝉(Recilia dorsalis Motsch.),而黑尾叶蝉(Nephotettix cincticeps Uhler.)和二点黑尾叶蝉(N.virescence Dis-tant.)的作用很小。整个冬、春田间只发现电光叶蝉有保毒虫,并能终生传毒,但卵不保毒。叶蝉在广东病区冬季仍繁殖1～2代,但若虫在感病再生稻及自生稻上可再获毒和保毒。电光叶蝉带毒率在1月份为5.06～15.38%,2月份下降为0～3.13%,3月份插秧前后上升至15.81～16.41%,可见电光叶蝉也是瘤矮病毒的重要越冬初侵染源。
From 1982 to 1984, the natural overwintering host plants in Guangdong paddy shortening virus field were mainly reeds and self-derived rice with the rates of 63.95-100% and 28.57-41.20% respectively. Alopecurus aequulis ) Is the host plant overwintering, but only a few individual disease, it is not important. Triticum aestivum, Arena sativa, Oryza rufipogon and Zea mays are also the host plants that have been inoculated successfully. Maize is a new host for successful inoculation in this study. Echinochloa crus-gallis and Leersia hexandra are insensitive. In natural conditions, as yet overwintering wheat and wild rice have been found to have contracted the disease. The dominant insect mediator of this virus is Recilia dorsalis Motsch. The role of Nephotettix cincticeps Uhler. And N. virescence DisTant. small. The whole winter, spring field only found light electric insects have insects, and can be lifelong poisoning, but the egg is not poisonous. Leafhoppers in the ward of Guangdong still breeding 1-2 generations in winter, but the nymphs in susceptible regenerated rice and self-grown rice can be re-toxic and safe. Light green leafhopper with virulence rates in January was 5.06 to 15.38% in February fell to 0 to 3. 13%, March rose to 15.81 to 16.41% before and after transplanting, we can see light-spotted leafhopper is an important source of overwintering initial infection .