How to identify true and false pesticides and treat failed pesticides

At present, there are many vendors selling pesticides in the society. Many long-term farmers are worried about buying pesticides, and they are afraid to buy fake pesticides. How to identify true and false pesticides? When purchasing pesticides, first check the pesticide name, specifications, dosage form, toxicity, function characteristics, use methods, etc., and then check the batch number of the pesticide, check the date of the pesticide and the name of the manufacturer. The general organophosphate insecticide is valid for 2 years, the water agent is 1 year, the carbamate, powder, etc. can be more than 3 years. The normal emulsifiable pesticide should be a uniform and transparent liquid. The medicinal bottle should be shaken and allowed to stand for 1 hour without delamination. The pesticide can be placed in the warm water. After the heat is absorbed, see if it has The reaction, if it is an undeteriorated pesticide, the precipitate in the bottle will slowly dissolve and disappear. It is also possible to stipulate a few drops of pesticide in water, and it will be milky white and no flocculation when it is slightly stirred, which is a stable state of the emulsion, which is a qualified product; the powder pesticide should have no moisture absorption and agglomeration, such as the appearance of moisture, hand When wet, it is a semi-destructive pesticide. If it is formed into a soft block, it will all fail. Take the wettable powder pesticide a little, pour it into the container and add water to make a thin paste, then add a small amount of water to stir evenly, and let it stand still. The undegraded pesticide has good suspension performance, the powder precipitation rate is slow, and the sediment is less, otherwise Deterioration or failure of pesticides of varying degrees.

According to the pesticide network , pesticides that have failed or deteriorated can not only play a role in controlling pests and diseases, but also cause adverse effects such as phytotoxicity on crops. Some of the toxicity of the ineffective drugs is reduced or increased. Therefore, the pesticides that have failed will be carried out. Properly handle the problem. First, it should be deeply buried in the place where the water source is located. Second, it must be returned to the sales department or merchant.