# Pesticide Calibration Formulas and Information1

J. Bryan Unruh 2

## Calibration Formulas

For any change in travel speed (MPH), calculate the resulting GPA2 by using:

See Table 1.

## Fluid Application

PESTICIDE APPLICATION RECORD

### Tables

Table 1.

Time (seconds) required to cover a specific distance to obtain a desired speed (mph).

 Time required (seconds) to travel a distance of Desired MPH Feet per minute 100 ft 200 ft 300 ft 2.0 176 34 68 102 2.5 220 27 54 81 3.0 264 23 45 68 3.5 308 20 39 58 4.0 352 17 43 51 4.5 395 15 30 45 5.0 440 14 27 41 6.0 528 -- 23 34 7.0 616 -- 19 29 8.0 704 -- 17 26 9.0 792 -- 15 23
Table 2.

Approximate Rates of Application Equivalents.

 Weights Liquid 1 oz/ft2 = 2722.5 lbs/A 1 oz/1000 ft2 = 43.56 oz/A = 1.4 qt/A 1 oz/yd2 = 302.5 lbs/A 1 pt/1000 ft2 = 5.4 gal/A 1 oz/100 ft2 = 27.2 lbs/A 100 gal/A = 2.3 gal/1000 ft2 = 1 qt/100ft2 1 oz/1000 ft2 = 43.46 oz/A = 2.72 lbs/A 1 lb/A = 1 oz/2733 ft2 = 8.5 g/1000 ft2 100 lb/A = 2.5 lb/1000 ft2

### Footnotes

1. This document is ENH90, one of a series of the Environmental Horticulture Department, UF/IFAS Extension. Original publication date November 1993. Revised September 2006. Reviewed December 2017. Visit the EDIS website at https://edis.ifas.ufl.edu.
2. J. Bryan Unruh, assistant professor, Extension turf specialist, Environmental Horticulture Department; UF/IFAS West Florida Research and Education Center, Milton, FL 32583.

No liability is assumed by the author or the University of Florida for the use of formulas in this publication.

### Publication #ENH90

Date: 2018-01-31
Unruh, Joseph Bryan
Environmental Horticulture

• Joseph Unruh