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Second, look at the appearance. If the powder, wettable powder, and soluble powder have agglomeration; the liquid agent has turbidity; the emulsifiable agent is opaque; the granules have too much powder, etc., and the above pesticides are not suitable for purchase of pesticides or inferior pesticides.
In addition, the purchase of pesticides should pay attention to more than one drug or one multi-drug of pesticides, do not buy, especially herbicides. Such as Dagongchen, four seasons red, one pass net, phlegm, imidacloprid, etc., all are 10% imidacloprid wettable powder, belonging to more than one drug; and the same pesticide called rice insect net, some are insecticide and BT The compounding agent is a compounding agent of pyrethroid pesticides and organophosphorus pesticides, and some are a mixture of several organophosphorus pesticides. Although the drug names are the same, the active ingredients are completely different.
Before purchasing pesticides, it is necessary to determine the types of pests and diseases that need to be controlled, what to treat, what to cure, and then to choose pesticide varieties. When purchasing drugs, carefully identify the label and description of the pesticide. All qualified pesticides are marked on the label and the manual with the name of the pesticide, the content of the active ingredient, the registered trademark, the batch number, the date of manufacture, the shelf life, and the three certificates - pesticide registration certificate. No., production permit number, product standard number, and with product manual and certificate. Do not buy pesticides that are not fully certified. In addition, the outer packaging of the pesticide should be carefully inspected. Do not buy any pesticides whose labels and instructions are unclear or have no formal label.
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