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College of Forestry and Conservation
University of Idaho

Weed: Treatments, Weeds, and Application Methods Data


After Go> is clicked for Weed Layer (Select Layers screen), a dialog box is displayed for entering the name of the field that stores the weed names in the Weed Layer:

After this name is supplied, the Weed: Treatments, Weeds, and Application Method Data form (shown below) is displayed. On this data entry form you will identify, for each invasive species, a chemical treatment to be analyzed, its application rate per acre, how much of which surfactant, and the cost per acre for the chemical (we will add the application method cost later). This form contains four tabs: Treatments data, Weed rank and spread rates, Application methods data, Treatment/Method.

Treatments Data Tab

Treatments Data

Screen Items

  • Select Weed: Select one (or more).
  • Chemical: Select one.
  • Applicable for riparian zones: Check if the selected chemical can be applied in riparian zones.
  • Rate: Enter the application rate in pt (pints) or oz (fluid ounces) (select one) per acre.
  • Surfactants: Enter the type and solution specification in % wlv NIS (percent weight/volume NIS - Nonionic Surfactants) or qt MSO (quart MSO - Methylated Seed Oil).
  • Effectiveness (years): Enter the time in years the treatment is effective for stopping spread (length of time between treatments).
  • Chemical Cost ($/acre): Enter the cost per acre for chemical and surfactant. Do not include application costs here (those costs are entered separately on the Application methods data tab).