Davey Tree Flipbooks

ODOT Guide for RIVM

The Davey Tree Expert Company provides residential and commercial tree service and landscape service throughout North America. Read our Flipbooks for helpful tips and information on proper tree and lawn care.

Issue link: https://daveytree.uberflip.com/i/795219

Contents of this Issue

Navigation

Page 75 of 89

76 Use the following worksheet to determine how many gallons to mix based on available spray hours. To complete this worksheet, the applicator will need to know the nozzle spray width (feet), ground speed (mph), desired work day length (hours), and the gallons per acre (GPA) application rate of the equipment. Reset the spray truck control panel to the appropriate settings. The recommended GPA of the herbicide solution can be found on the herbicide product label. This worksheet is designed for one nozzle; if multiple nozzles will be used the worksheet will need to be repeated for each nozzle. Check the nozzle manufacturer's specifications calibration table to determine flow rate in gallons per minute (GPM) based on nozzle spray width, pounds per square inch (PSI), GPA, and ground speed. PRODUCTION BASED ON WORK HOURS WORKSHEET CALCULATE TIME NEEDED TO TREAT ONE ACRE: 1. 43,560 (square feet per acre) ÷ (feet) nozzle spray width = (A) linear feet in 1 acre 2. 0.000189 (mile per foot) x (A) linear feet in 1 acre = (B) lane miles in 1 acre 3. (B) lane miles in 1 acre ÷ (mph) ground speed = (C) hours to spray 1 acre CALCULATE ACRES TREATED PER DAY: 4. (hours) desired work day length ÷ (C) hours to spray 1 acre = (D) acres sprayed per day CALCULATE AMOUNT OF HERBICIDE SOLUTION NEEDED: 5. (D) acres sprayed per day x (GPA) application rate = (gallons) amount of herbicide solution to mix for available spray hours

Articles in this issue

Archives of this issue

view archives of Davey Tree Flipbooks - ODOT Guide for RIVM