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Exhibit D 1
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Exhibit D 1
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Last modified
12/15/2025 11:52:49 AM
Creation date
12/15/2025 11:50:56 AM
Metadata
Fields
Template:
DRMS Permit Index
IBM Index Class Name
Revision
Doc Date
12/2/2025
From
QB
To
DRMS
Type & Sequence
TR18
Archive
No
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<br />25 | P a g e <br /> <br /> <br />treatments are deployed, with both non-selective and selective herbicides, to <br />treat weed species within areas where desirable broadleaf forbs and shrubs are <br />present or have been seeded. Spot treatments using a backpack sprayer are <br />often necessary to ensure accuracy of chemical application and prevent potential <br />unintended impacts from overspray and vehicle travel. For early-stage <br />reclamation areas (within growing season one and two), chemical treatments are <br />only deployed when weed species are present that ca nnot be adequately treated <br />via mechanical methods (perennial/biennial weeds, low rowing/prostrate weeds). <br />Backpack spot treatments are used in early-stage reclamation areas to prevent <br />damage to desirable vegetation in the germination and early establishmen t <br />phases, where all plants are susceptive to chemical treatment. <br />Broadcast methods with selective herbicides may be used in pasturelands with <br />established grass communities where weeds are interspersed throughout the <br />treatment area. Any chemical treatment within actively grazed pasturelands is <br />coordinated with the surface owner or tenant rancher. Deployed chemicals are <br />based upon grazing restrictions and product labels. <br />The first site visit and herbicide application is done in the early spring of the <br />approaching growing season or in the fall of the previous year. Non-selective, <br />residual herbicide is applied on compacted working surfaces around equipment, <br />at a minimum, as a safety precaution on active sites. This treatment type also <br />prevents the prevalence and spread of annual weed infestations that are <br />commonly observed on fresh and frequently disturbed sites. During this <br />treatment, pesticide applicators inspect the location and surrounding areas for <br />newly emerging weeds, or rosette “flushes” for sites treated in the fall. <br />The second site visit and treatment is done in spring to early summer. This post - <br />emergent treatment is intended to target early perennials (hoary cress, Canada <br />thistle, etc.), biennial rosettes, and annual “obnoxious weeds” such as Russian <br />thistle and kochia. Again, pesticide applicators will inventory the area for later <br />maturing plant species such as Russian knapweed. <br />During the third site visit, herbicide efficacy is monitored, and a mid-late summer <br />inventory is conducted with intentions to spray late -bolting biennials and budding <br />perennials; furthermore, mechanical removal of flowers and seed heads on <br />biennial species (most commonly musk thistle) may also be done around this <br />time <br />Lastly, on many sites, a late-summer to fall herbicide treatment may be applied <br />on creeping perennials such as Canada thistle and Russian knapweed in order to <br />best capture the opportunity to kill root systems through the use of translocated <br />herbicides. Following this step, the non-selective, pre-emergent treatments <br />described above will be used where applicable, and the cycle will start again. <br />This treatment plan is highly site-dependent; thus variations inevitably occur <br />based upon individual site characteristics (i.e. time since seeding, elevation, <br />soils, topography, moisture, etc.) and upon the various label requirements and <br />recommended target growth stages of the herbicides being used. <br /> <br />4.3 Mechanical Weed Management <br />Second to chemical means of control, QB utilizes mechanical weed management <br />on a frequent basis. Large-scale mowing or “brush-hogging” projects are <br />primarily executed on reclaimed sites that support a desirable plant component,
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