水稻干尖线虫病是水稻主要病害之一。该病的病源为一种虫臃,潜藏于种子内。稻苗发育中期感病,发病稻株叶尖干枯,病叶枯尖长度一般为3—5厘米。由于稻株叶片受损,至使大部营养物质从破损叶尖处外溢,造成稻株营养不良,植株变矮,稻穗变小,秕粒增加,产量下降,一般减产率为15％左右。 1987年以来,我地应用镇江农科所研制生产的“灭线灵”防 Rice dry tip nematode disease is one of the main diseases of rice. The source of the disease is a swollen insect, hidden in the seeds. Mid-term development of rice seedlings susceptible, the incidence of leaf tip dry leaves, sick leaves tip length is generally 3-5 cm. Due to the damaged leaves of rice plant, most nutrients will spill out from the damaged tip, resulting in malnutrition of rice plants, shortening of plants, reduction of panicles, increase of panicles, and decrease of yield. The general yield reduction rate is about 15%. Since 1987, I applied Zhenjiang Institute of Agricultural Development and production of “extinction Ling” prevention