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水稻干尖线虫病在浙江嘉兴常年发病较轻,仅在个别品种上零星发生,1989年城区晚稻田里大暴发,主要发生在丙620品种上。全区种植晚稻丙620品种24077亩,发病面积达17376亩,占种植面积的72.17％,发病株率一般为10～15％,个别田块高达70％以上,发病田块亩产仅394.3公斤,减产1成左右。1990年全区采用线菌清浸种消毒,防治面积达26899亩,占应防面积的90.5％。防效为97.2～99.8％,亩产465公斤,比对照增产13.7％。
Rice dry tip nematode disease in Jiaxing, Zhejiang perennial incidence of mild, only sporadic occurrence of individual species, urban outbreak in the late rice fields in 1989, mainly in the C 620 species. The region has 24077 mu of late-season rice variety C 620 with a morbidity of 17376 mu, accounting for 72.17% of the total cultivated area. The incidence of the disease is generally 10-15%. Individual farms are as high as 70% or more. Only 394.3 kilograms are produced per mu, Cut about 1 percent. In 1990, the whole area was treated with bacterium soaking and disinfection, with the control area of 26899 mu, accounting for 90.5% of the area to be protected. Control effect was 97.2 ~ 99.8%, 465 kg per mu, 13.7% more yield than the control.