在果树中，防治早期落叶病、揭斑病、炭疽病、溃疡病、疮痴病等主要病害的波尔多液已经使用了100多年。美国固信公司生产的可杀得可说是波尔多液之后的第二代杀菌剂，其优点大大超过了波尔多液。1．可杀得的主要成份是氢氧化铜．能缓慢地释放铜离子，持效期长，与波尔多液杀菌 Bordeaux mixture has been used for more than 100 years in the fruit tree for controlling major diseases such as early deciduous foliar blight, anthracnose, ulcer disease, and soreness. The second generation of fungicides produced by the United States can be said to be the second-generation fungicide after Bordeaux mixture, the advantage of which is much more than that of Bordeaux mixture. 1. Kill the main ingredient is copper hydroxide. Slow release of copper ions, long duration, and Bordeaux mixture sterilization