Efficient, broad-spectrum and long-acting fungicides can be transmitted to the top when applied to roots, but can not be transmitted to the base. They can be sprayed on the leaves, spraying 2.25 to 3.75g active ingredients /hm, which can prevent and control fungal diseases and root rot diseases of many crops, and have both protective and therapeutic effects. It is also widely used for diseases of citrus, apple, pear and banana during storage. It is treated with 500 ~ 1000mg / L and 700 ~ 1500mg / L solution respectively.
