The quality of spraying water (water hardness, PH, etc.) affects the effectiveness of pesticides, and normally, insecticides, fungicides and herbicides (except sulfonylureas) work best in slightly acidic water.
In addition to reducing the surface tension and increasing the contact surface of the poison droplets with the leaf surface, the non-ionic surfactant Dash has the property of reducing the pH of the spraying water, and as a result, the pesticides are more effective.

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