葡萄霜霉病是萄葡生产中一种严重病害,轻则造成减产,重则造成整株死亡。近年来对此病的防治,主要是用瑞毒霉进行喷雾。但喷雾防治的持效期只有两周,在从7月下旬到9月下旬长达两个月的时间内需喷药4次才能控制为害。这样既增加了防治费用,又加速了抗药性的产生。为此,我们根据土壤施药持效期长的特性,进行了灌根法防治霜霉病的试验,取得了较好的效果。采 Grape downy mildew is a serious disease in the production of grape, ranging from light to reduce production, while causing the entire plant death. In recent years, the prevention and treatment of this disease, mainly with the Swiss mold spray. However, the duration of spray control is only two weeks, from the end of July to late September for up to two months time to spray 4 times to control the damage. This will not only increase the cost of prevention but also accelerate the emergence of drug resistance. For this reason, according to the characteristics of long-term soil pesticide application, we carried out the experiment of preventing and curing downy mildew with irrigation and rooting method and achieved good results. Mining