Pesticide Calculator
Calculate accurate pesticide application rates and mixing requirements
Frequently Asked Questions
How do I calibrate my sprayer?
Drive a known distance (e.g., 200 feet), collect and measure output from nozzles, calculate gallons per acre based on nozzle spacing and speed. Adjust pressure or nozzle size to achieve desired rate. Re-calibrate regularly.
What weather conditions are best for spraying?
Apply when winds are 3-10 mph, temperatures are moderate (60-85°F), humidity is above 50%, and no rain is forecast for 24 hours. Avoid temperature inversions (early morning/evening calm) which increase drift risk.
How can I prevent pesticide drift?
Use appropriate nozzle types (larger droplets), reduce boom height, monitor wind speed and direction, use buffer zones near sensitive areas, choose low-volatile formulations, and apply during favorable weather conditions.
What records should I keep for pesticide applications?
Document date, time, location, crop/target pest, product name, EPA registration number, rate applied, total amount used, weather conditions, applicator name, and any observed effects. Retain records for at least 3 years.
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