A06_Attachment_4_Horning_Herbicide_Mix_Ratios.pdf
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- Attached to
- HERBICIDE 2026 HSO & TSO Federal contract opportunity
- Solicitation number
- 140L4326Q0022
About this file
This document is a pesticide application estimate and chemical requirements specification for orchard vegetation management operations.
The document provides detailed calculations for herbicide applications across multiple orchard units using three primary application methods: tree perimeter treatment (36 square feet around individual trees), band application (6-foot width strips along orchard rows), and spot/broadcast treatments for weeds. For spring and early summer applications, the estimate specifies approximately 42.6 gallons of glyphosate (4 lbs active ingredient per gallon), 25.4 gallons of Velpar L VU (2 lbs a.i. per gallon), and 3 gallons of Antero-EA as a surfactant. The tree perimeter application covers 3,507 trees across 15 orchard units with an estimated total of 2.59 acres and requires 2 applications. The band application encompasses 13 orchard units with approximately 13.15 total acres also requiring 2 applications. The 2026 additions specify fence line treatments (18.1 miles), roadway maintenance including right-of-way and shoulders (7.2 miles), and targeted weed treatments (13 acres total) to be conducted in spring, early summer, and fall, requiring an estimated 19.04 gallons of glyphosate, 25.38 gallons of Velpar L, 5.87 gallons of dicamba, and 0.30 gallons of Antero-EA for these supplementary treatments.
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Text version
36ft2 Tree Perimeter Application (glyphosate only)
E50 - Cascade NF 1.5 267 36ft² 0.22 21.18 0.22 Glyphosate (4 lbs a.i per gallon) 42.6 E51 - Coast NF 1.5 506 36ft² 0.42 40.15 0.42 Velpar L VU (2 lbs a.i per gallon) 25.4 E52 - S. Washington Cascades NF 1.5 441 36ft² 0.36 34.99 0.36 Antero-EA 1 C53- Holiday 232 36ft² 0.19 18.41 0.19 C54- Stimson NF 268 36ft² 0.22 21.26 0.22 C14- Coast Hemlock 1.5 192 36ft² 0.16 15.23 0.16 P16-Copes 110 36ft² 0.09 8.73 0.09 C87-Socomi High 293 36ft² 0.18 17.43 0.18 C88-Socomi Low 581 36ft² 0.36 34.57 0.36 C91 High Terpene Coast WRC 206 36ft² 0.13 12.26 0.13 C92 High Terpene Cascade WRC 96 36ft² 0.06 5.71 0.06 C99 - Central Coast low DF 315 36ft² 0.20 18.74 0.20 Estimated Total 3507 2.59 248.67 2.59 Number of Applications 2 497.34 5.18 Ounces Estimated Grand Total 5.18 3.89 0.04 Gallons
Band Application (glyphosate only)
Length of Rows (ft)
P14-HEMTIC Preservation 12 450 6 0.74 71.40 0.744 P15 MEDTIC Preservation 17 441 6 1.03 99.13 1.033 P90-North Coast TIC Preservation 15 365 6 0.75 72.40 0.754 C82-Jefferson 12 360 6 0.60 57.12 0.595 C83-Murphy 8 260 6 0.29 27.50 0.287 C84-Morton 9 260 6 0.32 30.94 0.322 C85-Olympic 18 425 6 1.05 101.16 1.054 C86-MishCal 7 150 6 0.14 13.88 0.145 C89-Morton High 16 150 6 0.33 31.74 0.331 C90-Pac Forest 9 55 6 0.07 6.55 0.068 C93 Shasta 1.5-DF 15 400 6 0.83 79.34 0.826 C94 N California Coast 33 240 6 1.09 104.73 1.091 C95 White Fir 28 170 6 0.66 62.94 0.656 C96 Pilchuck 9 55 6 0.07 6.55 0.068 C97 Mid-Columbia 10 176 6 0.24 23.27 0.242 C99- Central Coast Low 3.0 10 440 6 0.61 58.18 0.606 C62-Hampton Cascade Hemlock 8 200 6 0.22 21.16 0.220 Assist Migration Plots 42 710 6 4.11 394.31 4.107 Estimated Total 13.15 1262.31 13.15 Number of Applications 2 2524.61 26.30 Ounces Estimated Grand Total 26.30 19.72 0.21 Gallons
2026 Additions - Applications would take place in Spring, Early Summer, and Fall
Fence (2ft strip) Miles 18.1 3 4.39 13.16 1263.71 1684.95 140.41 13.164 Roadways (ROW, Shoulders, & Median) Miles 7.2 2 6.11 12.22 1172.95 1563.93 195.49 12.218 Spot Treatment for Weeds Acres 10 1 10.00 10.00 320.00 10.000 Broadcast Treatment for Weeds Acres 3 1 3.00 3.00 96.00 3.000 Estimated Total 23.50 38.38 2436.65 3248.87 751.90 38.38 Ounces Estimated Grand Total (gallons) 19.04 25.38 5.87 0.30 Gallons
Total Glyphosate (oz)
(~3qt/acre)
Total Velpar L
(oz) (4 qts/acre)
Total Dicamba (2qts/ac for spot, 1qt/acre for brdcst) - 1 treatment
Total Antero EA (oz) (1 qt/100 gal H2O)Type Unit Amount
Number of Applications Total AcresAcres
Total Estimated Chemical Needed (gallons)
(Spring and Early Summer)
Orchard Units Number of Rows
Width of Band Application (ft)
Area application total by orchard
(ac)
Total Glyphosate
(oz) (~3qt/acre)
Total Antero EA (oz) (1 qt/100 gal H2O)
Orchard Units Number of Trees
Application area around Tree (
36ft²)
Area application total by orchard
(ac)
Total Glyphosate
(oz) (~3qt/acre) Total Antero EA
(Spring and Early Summer)
Mix Ratios
File details come from the government source that posted it. Updated .