指示各专市县查小麦线虫病(俗名鬼麦、变麦、麦变子、翘子、乌子等)为本省麦产的一大病害,其分布遍及全省,尤以信阳、许昌、南阳等专区为甚。前据遂平县典型调查,麦株之遭受此等病害者达百分之十六至十八;并据信阳仓库检查结果,麦粒有百分之三患有线虫病,其产量损失实属重大。近届秋收麦播之际,为减少此种病害传染确保明年麦产计,特将线虫病麦粒病征及简易而经济的胶泥水选种办法分述于后:一、线虫病麦粒病征:麦粒胚乳特别膨胀,呈瘤瘿状近似球形,(如草子)滑泽无毛,为黄褐色,皮壳坚硬而中空;但充满败絮状的物质,就是线虫的卵及成虫。二、胶泥水选种的方法:此法利用胶泥水,使小麦粒浸其中,则小麦中的线虫病粒即行浮起再淘除之其详细手续分述于后: Instruct each city and county to check the occurrence of wheat nematode disease (commonly known as ghost wheat, wheat, wheat, Alice, black son, etc.) as a major disease of wheat in the province, its distribution throughout the province, especially Xinyang, Xuchang, Nanyang Such as special area. According to the typical survey in Suiping County, wheat plants suffered 16% to 18% of these diseases. According to the inspection results of Xinyang Warehouse, 3% of the grains suffered from nematode disease, and the yield loss was indeed major. In the recent autumn harvest of wheat sowing occasion, in order to reduce the transmission of this disease to ensure that next year’s wheat production plan, especially nematode disease symptoms and simple and economical cement slurry water selection methods are described later: First, nematode disease symptoms: The grain endosperm is particularly inflated with an almost spherical shape like a nubric, (such as grass) glistening glabrous, yellowish-brown, with a hard and hollow crust; however, the foul-smelling substance is the egg and the adult of the nematode. Second, clay water selection method: This method uses clay water, so that the wheat grain immersed in them, the nematodes in the wheat particles that float and then erase the detailed procedures described in the following: