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Windows Pesticide Screening Tool (WIN-PST)

WIN-PST is an environmental risk screening tool for pesticides.

NRCS field office conservationists, extension agents, crop consultants, pesticide dealers and producers can use it to evaluate the potential of pesticides to move with water and eroded soil/organic matter and affect non-targeted organisms. WIN-PST users can specify pesticides by product name or active ingredient.  Long-term human and fish toxicity data and ratings are also included in WIN-PST. These toxicity ratings can be combined with the off-site movement potential ratings to provide an overall rating of the potential risks from pesticide movement below the root zone and past the edge of the field.

Installation is fairly simple.  

Just download the WIN-PST installation files.zip and extract to your local drive.

FPAC users should use the Software Center to install WIN-PST.

WIN-PSTinstallationfiles (47.46 MB)

After extraction, install each file in this order:

  1. vcredist_x86.EXE   - Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package MFC Security Update
  2. WinPST3113.exe    - Base WIN-PST ver.  3.1.1
  3. WinPST312patch.exe – Update patch to ver. 3.1.20
  4. UpdateWIN-PST3.1.30.msp – Final update patch to version 3.1.30
Fix Automatic Pesticide Data Update Notifications In WIN-PST (131.62 KB)

Download: WIN-PST 3.1 Pesticide Update 3-31-25

New:
Pesticide Data Update (Released 3-31-25)
A data update is available for WIN-PST 3.1 pesticide data. The update includes:

  • All active ingredients from past updates.
  • 13 New active ingredients added.
  • Common names for AIs modified to better reflect the AI name found on the label.
  • All tables updated to show the same common name for each active ingredient.
  • Synchronization with EPA Pesticide Product Registration Database as of 3-31-25.
     

Note: Pesticide updates require WIN-PST version 3.1.30
Previous Versions: WIN-PST 3.1 Pesticide Update

WinPstUpdPest_3-31-25.zip (2.96 MB)

Note: Pesticide updates require WIN-PST version 3.1.30

Previous Versions: WIN-PST 3.1 Pesticide Update

 

WinPstUpdPest 9-27-24 (2.95 MB)
WinPstUpdPest 3-19-24 (2.93 MB)
WinPstUpdPest_9-26-23 (2.92 MB)
WinPstUpdPest_3-24-23 (2.98 MB)
WinPstUpdPest9-30-22 (2.96 MB)

Questions:

  • Shannon Carpenter ---
    Agronomist, Water Quality and Quantity Technology Development Team, West National Technical Support Center 

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