Categories / Economic Thresholds
Economic Thresholds in Illinois
Questions, county scouting links, plant health guidance and field record checklists for scouting thresholds and treatment economics in Illinois.
Verification checklist
Use published crop- and pest-specific thresholds, costs and expected losses; do not invent universal action numbers. Ask whether the crop diagnostic laboratory or Extension adviser actually operates in the selected county, confirm operating status, sampling or laboratory services and written terms, and confirm transaction terms in writing.
County and geographic coverage
Official resources
- USDA National Institute of Food and Agriculture
- USDA APHIS Plant Health
- EPA Integrated Pest Management Principles
- USDA IPM Information
- National Pesticide Information Center