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How to Manage Pests

Pesticides: Water-Related Toxicology of Active Ingredients

Using WaterTox continued

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Step 2. How will the pesticide be applied?

Because how you apply the pesticide can impact the risks to water quality, indicate

  • How much area you're treating.
  • How much pesticide will come in contact with the soil.
  • The application rate.

Click Go after making your selections.

What area is being treated?
  • Will you apply the pesticide to more than 50% of the field?
  • Or will you treat less than 50% of the field, by using strip applications or spot sprays, for instance?
How much pesticide will come in contact with the soil?
  • Surface applied means that you will apply the pesticide to bare ground or an incomplete canopy.
  • Foliar applied means that you will apply the pesticide when the crop or weeds are at nearly full canopy.
  • Soil incorporated means that you will incorporate the pesticide into the soil.
What is the application rate?
  • Rates above 1/4 pound of active ingredient per acre are considered the "standard" rate by WIN-PST.
  • Rates from 1/10 to 1/4 pound active ingredient per acre are considered to be low by WIN-PST.
  • Rates less than 1/10 pound of active ingredient per acre are considered to be ultra low by WIN-PST.

Note:

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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