The secondary dilution of pesticides is also called a two-step formulation method and is one of the methods of pesticide formulation. After two dilutions of pesticides are formulated, they can make certain non-soluble wettable powders or small amounts of pesticides more fully dissolved, more uniform distribution, more accurate measurement, can not only improve the effectiveness of the drug, but also reduce the drug The occurrence of harm can also reduce the risk of exposure to the original drug poisoning. The following methods can be used for secondary dilution of pesticides.
A medical saline bottle with a volume scale was selected, the pesticide was placed in a bottle, an appropriate amount of water was added to the mother liquor, and the measuring cup was used for measurement.
When using a backpack sprayer, two dilutions can be made directly in the tank. First add a small amount of water to the sprayer, add an appropriate amount of liquid, shake well, and then make up for water and mix.
When using a mobile sprayer for large area application, a larger amount of containers, such as barrels, cylinders, etc., can be used for the first dilution of the mother liquor. The secondary dilution can be formulated in a sprayer pail and mixed for use.
Note: In order to ensure the dilution quality of the liquid, the amount of water used to prepare the mother liquor should be carefully calculated and carefully measured, and it should not be used arbitrarily or with little use, otherwise it will directly affect the control effect.
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