At present, most of the province's rice is in the heading stage. Due to the recent rain and low temperature, it is conducive to the occurrence of rice koji. The disease easily leads to reduced rice yield and affects the commerciality of rice. Rice mixed with more rice koji disease grains is generally inedible.

Weishida 27.12% Basic Copper Sulphate suspending agent is a high-efficiency, broad-spectrum, environmentally friendly fungicide. It is registered for the control of rice koji, rice blast, early blight of tomato, apple tree ring disease and citrus canker.

It is used to prevent and cure rice smut disease. Spray the medicine 5-7 days before the rice break and after the ears, and spray 30 ml of weishida 27.12% basic copper sulfate suspension and 30 kg of water per acre each time. After the occurrence of oryzae (more than 80% of the oryzae disease particles exposed as light yellow fungal clumps), weishida 27.12% basic copper sulfate suspension agent is sprayed with 30 ~ 40 kg of water per acre to spray the fungus The germs in the block are killed, so that the block shrinks and falls off when the weather is sunny, reducing the pollution to healthy grains.

The medicine has the characteristics of good effect, safety to crops, and good compatibility with other pesticides. When mixing, dilute with water before mixing with other pesticides. Use in the later stages of rice growth will not affect heading. Be careful to avoid rice flowering.