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近年来，由于个别农户盲目引种，使水稻干尖线虫病在我地开始发生，受害植株矮缩、穗小、粒少、空瘪率高、籽粒扭曲，危害严重者减产达80％左右。为筛选出防治水稻干尖线虫病最安全、高效、低成本的药剂，1998、1999两年做了防治水稻干尖线虫病的药剂试验。1材料与方法试验材料
In recent years, as a result of blind introduction by individual farmers, dry tip nematode disease began to occur in our country. The affected plants were dwarfed, spikelets small, with low emptying rate and grain distortions. The serious damage was reduced by about 80%. In order to select the most safe, effective and low-cost medicament for the prevention and treatment of rice stem-tip nematode disease, the pharmaceutical experiment on prevention and treatment of rice stem-tip nematodes was conducted in 1998 and 1999. 1 Materials and Methods Test Materials