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在农作物病害中,有不少是以种子带菌为传染途径的。例如洋芋环腐病,小麦散黑穗病等,以种子带菌为作物发病的唯一来源。有些病菌,如小麦腥黑穗病,高粱丝黑穗病,玉米丝黑穗病等,则在幼苗出土以前侵染。还有一些病毒,如小麦黄矮病、红矮病是由蚜虫、叶跳蝉等传染的。因此,种子进行播前处理是防虫防病,发挥良种增产作用的一项有效措施。过去我县各社队用赛力散、3911等药剂拌种效果良好,基本控制了小麦腥黑穗病、黄矮
In crop diseases, many are infected with seed as a means of transmission. Such as potato ring rot disease, scattered smut of wheat, the only source of crop-borne disease with seed carriers. Some germs, such as wheat taupe, sorghum smut, maize smut, etc., are infested before the seedlings are unearthed. There are some viruses, such as wheat yellow dwarf disease, red dwarf disease is infected by aphids, leafhoppers and other insects. Therefore, the pre-sowing of seeds is an effective measure to prevent insect pest and prevent diseases and play a role of increasing seed yield. In the past, various social teams in our county used SaiLiSan, 3911 and other medicament seed dressing effect was good, basic control of wheat tangled head smut, yellow short