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Herbicide Application Updates#

Herbicide Application Updates

This website is updated on a weekly basis during the growing season. Always look for the herbicide application flags which are placed out before application and left up for 24 hours after application.

Questions? Contact the Park Shop at or 970.221.6660.

Please note, all herbicide application schedules are subject to change due to weather and programmed activities. 

Week of August 2 - August 8#


Brand Name: Cornerstone

Active Ingredient: Glyphosate

Areas : Tree rings, Right of way

Target: Unwanted Vegetation


Locations: Blevins Park turf

Name: 4-Speed XT

Active: 2,4-D, Triclopyr, Dicamba Acid, Pyraflufen ethyl

Target: Unwanted vegetation


General Area Sprayed: Grandview Tree Rings

Products: Round Up Power Max, Oryzalin 4

Active Ingredients: Glyphosate, Oryzalin

To Control:  Weeds and Unwanted Grasses


Where: Fossil Creek Park dog park, no mow zones, shrub beds, hard surface, and tree rings

What: 4lb Amine Cornbelt, Glyphosate P:ro 4

Active Ingredient: 2-4d, Glyphosate

To Control:  Unwanted Grasses & Weeds


Park: English Ranch, Harmony, Radiant, Stew Case, Twin Silo, Archery Range, Rigden Trail

Area: plant beds, ballfields, tree rings, native areas, turf areas, hardscapes, path edges

Product: Glyphosate pro 4, Orzalin 4, Cornbelt Metro & 4# Amine

Active Ingredient: Glyphosate, Orzalin, 2,4-D

To Control:  Weeds and Unwanted Grasss