Pest & Spray Calculators

Free calculators for safe pesticide application, compliance tracking, and integrated pest management. From spray rates and re-entry intervals to drift risk assessment, every tool includes compliance guidance.

Spray Application Rate Calculator

Calculate pesticide dilution rates, product per tank, and total product needed for your field area.

REI & PHI Tracker

Track restricted entry intervals and pre-harvest intervals with countdown timers and compliance status.

IPM Cost-Benefit Calculator

Evaluate whether pest treatment is economically justified using pest counts, economic thresholds, and ROI analysis.

Spray Drift Risk Calculator

Assess spray drift risk using wind speed, nozzle type, buffer distance, and weather conditions.

Pest & Spray Guides

Understanding Spray Application Rates

Learn how to read pesticide labels, calculate dilution rates, calibrate your sprayer, and determine the right product quantity for your field.

Restricted Entry and Pre-Harvest Intervals Explained

Understand REI and PHI requirements, why they matter for worker safety and food safety, and how to track compliance.

Integrated Pest Management: When to Spray

Learn IPM principles, economic thresholds, scouting techniques, and how to make data-driven spray decisions.