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水稻条纹叶枯病由于其传毒、显症的水稻生育期不同,可出现“假枯心”、“黄化枯死”和“假白穗”3种发生型,且以“黄化枯死”型发生重,为害损失最大。根据对飞虱和水稻条纹叶枯病消长动态、发生期距和不同时期防治效果分析,前两种发生型分别由灰飞虱第一代成虫和第二代若虫传毒引起。由此提出药剂防治以水稻秧池和大田并重的治虫防病对策。
Rice stripe blight can occur in three types of “fake dead”, “yellow dead” and “fake white spike” due to the different growth stages of rice infected with the disease. Occurred heavy damage damage the largest. Based on the analysis of the dynamics of the growth and development of planthoppers and rice stripe blight and their control effects and the control effects at different stages, the first two occurrences were caused by the first generation adult and the second generation nymphs of Laodelphax striatellus. It is proposed that the chemical control should be based on the prevention and control of pests and diseases of rice seedling pool and field.