About the Windows Pesticide Screening Tool (WIN-PST)
The USDA NRCS West
National Technology Support Center, Water Quality and Quantity National
Technology Development Team, developed and supports the Windows Pesticide
Screening Tool (WIN-PST). NRCS Pest Management Policy (November 2001)
requires the use of WIN-PST or other NRCS-approved environmental risk
analysis tools in supporting the development of the pest management
component of a conservation plan.
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.
NRCS partners (such as
private pest control advisors) now have access to this easy-to-use
science-based tool for considering environmental risk and making
recommendations. WIN-PST goes beyond previous NRCS screening tools in
considering the impact of water table depth, rainfall probability, pesticide
application area, application method and rate class (Standard, Low,
Ultralow).
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.
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