Why does run-off matter?

Run-off occurs when too much spray solution is applied and the spray deposit on the target (e.g. the leaf) is more than that surface can retain [hold back]. The excess pesticide runs off, is wasted and may contaminate your soil or pollute nearby waterways.

Normally, run-off increases when water volume rates applied are too high for the particular combination of crop and pesticide formulation. Thus several different water volume rates may be quoted on the label depending on the characteristics of the crop and/or the particular pesticide formulation being used. For instance lower water volume rates may be needed where the crop leaves are waxy and sloping downwards.

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