波尔多液是一种较优良的常用保护性杀菌剂,至今已有一百多年的使用历史,它能在多种作物上防治各种病害(如葡萄霜霉病、马铃薯晚疫病、棉花角斑病、柑桔疮痂病、橡胶树炭疽病、胡椒瘟病等),而且毒性低,残效期长,有农药“老将”之称。波尔多液一般只能现配现用,否则就会失效和使作物发生药害。配制的质量与防治效果也有很大 Bordeaux mixture is a kind of good common protective bactericide. It has been used for more than one hundred years. It can prevent various diseases (such as grape downy mildew, late blight of potato, Disease, citrus scab, rubber tree anthracnose, pepper blast, etc.), and low toxicity, long residual period, with pesticides, “veteran,” said. Bordeaux mixture is usually only available with the current use, otherwise it will fail and crop phytotoxicity. Preparation of the quality and effectiveness of prevention is also great