Stone-sulfur mixture is an agricultural bactericide, which is made of quicklime and sulfur by boiling in water. Among many fungicides, sulfur-mixed agent is widely used by fruit farmers because of its advantages of convenient materials, low price, good effect, inhibition and killing of various germs. However, because there are many boiling links in the stone sulfur mixture, the mother liquor boiled by fruit farmers is too low, and many people can't achieve the expected control effect by diluting it with water only by experience. The mixture of lime and sulfur is made by adding water, and the best ratio of the three is 1:2: 10. When cooking, you must use a clay pot or a raw iron pot. Using a copper pot or aluminum pot will affect the efficacy.

Lime nitrogen is a mixture of calcium cyanamide, calcium oxide and other insoluble impurities. It is grayish black and has a special smell. It is an alkaline fertilizer and one of the main raw materials of carbendazim pesticide with high efficiency and low toxicity. Can be used as herbicide, bactericide and insecticide, and can be used for producing dicyandiamide, melamine and cyanogen melt.

Sulfur mixture is suitable for grape cultivation, and its concentration is 0.2-0.3 Baume degree. It has obvious effects on downy mildew, powdery mildew, rust, black pox, white rot and anthracnose, and also treats some pests. My Kyoho grape 20 1 1 was sprayed four times, with an interval of 25 days, all of which were 0.2 Baume degrees, and the effect was good. Note: Do not use it before or during flowering, and use it with caution when the temperature is too high. Because we have no heating in summer, it is safe to use.

It is recommended not to mix them as much as possible, and it is best to use them alone. The mixture of stone and sulfur is sure to kill some fungi.