The quality of pesticides can be easily identified through the following methods: 1. Identification of pesticides from the appearance of pesticide labels and packaging. 1. When pesticides are registered, there are strict requirements for pesticide labels. The pesticide label should include the product name, pesticide registration number, Product standard number, production license number or production approval document number and the active ingredient, content, weight, product performance, toxicity, use, method of use, production date, expiration date, precautions, and manufacturer's name, address, zip code, etc. of the pesticide If it belongs to pesticide loading, it should also indicate the packaging unit. In the absence of any of the above, product quality should be questioned. 2. Judging from the name of the pesticide product. The product name on the label should be a Chinese common name or legal product name. However, the name of pesticide products on the market is very chaotic. Some are free to take trade names, and some are free to add words such as type I, type II, compound, and high efficiency. These are illegal names. Buyers of pesticides should first carefully look at the pesticide label. Any product that cannot be identified with the name of the pesticide ingredient should not be easily purchased. 3, the same measurement of the product specifications should be the same, can not be large or small, internal and external packaging should be complete, can not be damaged. 4, ask to see if the product has a factory certificate. 5, bulk pesticide products can not be purchased. Because production and operators can be adulterated at any time, problems are difficult to deal with. Second, from the form of pesticides to identify the advantages and disadvantages 1, powder, wettable powder should be loose powder, no lumps. If there is agglomeration or large particles, it means that the product has been affected by moisture. Not only the fineness of the product is less than required, but the content of its active ingredient may also change. If the color is not uniform, it also indicates that there may be quality problems. 2. The emulsifiable concentrate should be a homogeneous liquid with no precipitate or suspended matter. If there is stratification or turbidity, or if the emulsion diluted with water is not uniform, floating particles visible to the naked eye, or emulsifiable concentrates or precipitates, all indicate that the product quality may be problematic. 3, suspension agents, suspoemulsions should be a flowable suspension, no agglomeration, long-term storage, there may be a small amount of stratification, but after shaking should be able to restore the original state. If after shaking, the product can not be restored or there is still agglomeration, the product has quality problems. 4. Tablets for fumigation are powdery and indicate failure. 5, the liquid agent should be a homogeneous liquid, no precipitation or suspension, generally do not appear cloudy precipitation after dilution with water. 6, granule products should be uniform in thickness, should not contain too much powder.
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