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水稻矮缩病(RDV)是七十年代在长江中、下游稻区流行的一种病毒病,常与黄矮病(RYSV)并发,造成双季晚稻严重减产。其病状有白点型和扭缺型两类,前者叶片呈现断续虚线条状的白点,后者心叶或叶尖成螺旋状扭曲或叶缘现缺刻。本病由黑尾叶蝉(Nephotettix cincticeps)、大斑黑尾叶蝉(N.nigropictus)和电光叶蝉(Recilia dorsalis)传染。黑尾叶蝉最短吸毒时间为5分钟,循回期平均12.4天(29.2℃)和17天(20.0℃)。带毒虫多数基本上连续传毒直至死亡。经卵传递虫率高达74.4～88.5%,经卵传毒若虫少数在孵化的当天,多数在孵化后的第6～8天开始传毒。各地虫子对病毒的亲和力不同。
Rice dwarf disease (RDV) is a virus disease endemic to the middle and lower reaches of the Yangtze River in the 1970s. It is often associated with yellow dwarf virus (RYSV), causing serious double-season late rice loss. The symptoms of white point type and twist type two types, the former leaves appear intermittent dotted strip of white spots, the latter leaf or tip spiral into a spiral or leaf margin is missing. The disease is transmitted by Nephotettix cincticeps, N. nigropictus and Recilia dorsalis. The shortest drug consumption time was 5 minutes. The average recovery time was 12.4 days (29.2 ℃) and 17 days (20.0 ℃). The majority of poisonous worms basically continue to poison until death. Oviparous worm rate as high as 74.4 ~ 88.5%, by a small number of egg poisonous nymphs on the day of hatching, the majority of the first 6 to 8 days after hatching poisoning. Insects around the virus of different affinity.