Natural Resources Staff Spray Areas - City of Longmont Skip to main content

The following locations are scheduled to be sprayed October 12-16, 2026.

Natural Resources AreaTarget SpeciesChemical Trade Name
Lykins Gulch and Pondcanada thistle, biennial thistles, hoary cress, perennial pepperweedmilestone, telar XP
Sandstone Ranch Visitors Center Pondeurasian watermilfoilsonar genesis
Left Hand Creek Corridor, Pike to Maingreen ash and crack willow aquaneat, Garlon 3A
Oligarchy Ditch at Union Reservoirwillowaquaneat, Garlon 3A
perimeter of Union Reservoircanada thistle, hoary cress, perennial pepperweedmilestone, telar xp