1. Identify authenticity from pesticide labels and packaging

1. Identify from pesticide labels. The pesticide label should indicate the product name, pesticide registration certificate number, product standard number, production license number or production standard certificate number, as well as the pesticide’s active ingredients, content, weight, product performance, toxicity, purpose, usage method, production date, Validity period, noted matters and the name, address and postal code of the manufacturer. If pesticides are repackaged, the repackaging unit and pesticide repackaging registration certificate number should also be indicated.

2. Judge from the name of the pesticide product. The product name on the label should be the common Chinese name or legal trade name. However, the names of pesticide products on the market are very confusing at present. Some randomly choose the trade names, and some randomly add "King, Huang, Zui, FH, CP, Type I, Type II, Compound, High Efficiency, Non-toxic, No Residue" These are illegal names. Pesticide buyers should carefully read the pesticide label first, and do not buy any product that is uncertain about the name of the pesticide ingredient contained in the product.

3. Products of the same measurement should have the same specifications, no big or small, and the inner and outer packaging should be complete and free of damage.

4. Check the product factory certificate. In accordance with the "Pesticide Management Regulations" and relevant regulations, each product packaging box should be accompanied by a product ex-factory certificate. Pesticide buyers can first ask the operator to present the ex-factory certificate to ensure the quality of the purchased product.

5. Pesticide products in bulk cannot be purchased. Because producers and operators can adulterate at any time, it is difficult to deal with problems when they arise.

2. Identify the advantages and disadvantages of pesticides based on their physical form

1. Powders and wettable powders should be loose powder without clumps. If there are lumps or more graininess, it means it has been affected by moisture. Not only will the fineness of the product fail to meet the requirements, but the content of its active ingredients may also change. If the color of the product is uneven, it also indicates that there may be a quality problem.

2. The emulsifiable concentrate should be a homogeneous liquid without sediment or suspended solids. If stratification and turbidity appear, or the emulsion after adding water is uneven or has floating oil or sediment, it indicates that the product is There may be issues with quality.

3. Suspensions and suspoemulsions should be flowable suspensions without caking. After long-term storage, there may be a small amount of stratification, but they should be able to return to their original state after shaking. If after shaking, If the product cannot be restored to its original shape or is still agglomerated, it indicates that there is a quality problem with the product.

4. If the tablets used for fumigation are in powder form, it indicates that they have expired.

5. The aqueous agent should be a homogeneous liquid with no sediment or suspended solids. Generally, there will be no turbid precipitation after dilution with water.