Pesticide Laws and Application Information
Understanding Pesticide Persistence (pdf)
Preventing Water Contamination & Pesticide Drift-Checklist (pdf)
Hand Sprayer Calibration Steps Worksheet (pdf)
Chemigation Assessment Checklist (pdf)
Calibrating Boom Sprayers (pdf)
Calculating Chemigation Injection Rates (pdf)
Boom Sprayer Calibration Steps Worksheet (pdf)
WAC 16-228 General Pesticide Rules 2023 (pdf)
WAC 16-202-2001 Fertigation (pdf)
WAC 16-202-1001 Chemigation (pdf)
RCW 17.21 WA Pesticide Application Act 2023 (pdf)
RCW 15.58 WA Pesticide Control Act 2023 (pdf)
List Alternative Devices Expanded List (pdf)
Data Sheets
WSDA Approved Recordkeeping Requirements