What is the significance and role of secondary dilution of pesticides?

Everyone knows that pesticides purchased need to be diluted twice, so why do pesticides need secondary dilution? And what is the method for secondary dilution of pesticides? Let's find out together below.

1. Benefits of secondary dilution of pesticides:

After two rounds of dilution and preparation, pesticides - especially some wettable powders that do not dissolve easily or pesticides used in very small amounts - can be dissolved more fully and distributed more evenly, making the measurement more accurate. This can improve the effectiveness of the pesticide, reduce the occurrence of pesticide damage, and also reduce the risk of poisoning from contact with the original pesticide.

2. Methods for secondary dilution of pesticides:

Choose a medical saline bottle with volume markings, place the pesticide in the bottle, inject an appropriate amount of water to make a mother liquid, then measure it with a measuring cup before use. When using a knapsack sprayer, the secondary dilution can be done directly in the tank. First add a small amount of water to the sprayer, then add an appropriate amount of pesticide liquid, shake well, and then fill up with water and mix well before use. When using motorized sprayer equipment for large-area application, a larger container such as a bucket or vat can be used for the first-stage dilution of the mother liquid. For the second-stage dilution, it can be prepared in the sprayer tank, mixed well, and used.