Fungicide's Method Of Operation

There are many ways to use fungicides, and each method of use is designed according to the law of disease occurrence. The common methods of use are: spraying the crops on the ground, disinfecting the soil and disinfecting the inoculum.

For the field crop spraying, the factors affecting the field defense effect of the fungicide are not only the three aspects of the agent, the environment, and the crop, but the application technology of the fungicide is higher than the application technology of the insecticide and the herbicide, especially It is necessary to fully understand the law of the occurrence and development of diseases, because the occurrence and development of diseases are not as clear as pests and grasses.

There are two points to note about spraying crops in the field: first, the type and concentration of the agent. The choice of the type of the drug depends on the type of disease, so it is necessary to make a correct diagnosis of the type of disease before it can be prescribed. For example, rice blast can be selected from rice glutinous rice, rice glutinous rice, tricyclazole, wheat powdery mildew, rust, triazolol, triadimefon, etc., and peanut leaf spot should be selected from methyl thiophanate. However, it should also be noted that if the same disease occurs on different crops, sometimes the same agent cannot be used. For example, Bordeaux mixture can prevent downy mildew, but it is easy to cause phytotoxicity to cabbage, so it is not suitable for controlling cabbage downy mildew. After the type of the drug is selected, the appropriate application concentration is selected according to the type of the crop and the growth period, the type of the bactericide, the dosage form, and the environmental conditions.