When many domestic vegetable farmers purchase liquid pesticides , they choose pesticides by shaking and observing the viscosity. They generally think that the pesticides that are thicker and thicker should be better, and the pesticides that are more swaying are more water. poor effect. In fact, this method of identification is unscientific.
The density of the pesticide does not indicate that the concentration of the agent is high, and it does not indicate that the effect is good. The thick and thin pesticides are only a matter of production process and have nothing to do with the effect. If the vegetable grower only recognizes the density of the pesticide, it is bound to buy unqualified pesticides.
Nowadays, pesticide products are constantly being introduced, and many pesticide brands occupy the market, which makes many vegetable farmers do not know how to choose, so they make wrong judgments in their own delusions, causing labor and wealth.
Insiders suggest: When purchasing pesticides, you must first read the instructions. If the instructions are marked as “Import from a certain countryâ€, the phone is “a certain place in the countryâ€. This is often a case of some small pesticide manufacturers deceiving vegetable farmers. The means must be carefully chosen for this agent. In addition, we must look at whether the "three certificates" of the products are complete, and we must purchase the products produced by the large manufacturers with formal and credit guarantees. In addition, if a new drug appears, do not blindly use it in large areas, and then use it before testing.
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