When many vegetable farmers buy liquid pesticides, they will shake the bottle to observe the viscosity of the bottle to determine which effect will be better. It will be considered that the relatively thin pesticides have more water and no effect. According to the China Pesticide Network , this method is very 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, the first thing to look at is 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 means for some small manufacturers to deceive farmers. Be sure to choose carefully for this kind of medicine. 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.
The pesticide network reminds farmers that if they don't know how to judge the efficacy when purchasing pesticides, they will consult some agricultural technicians to make a comprehensive understanding of the purchased pesticides.
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