Noxious Weed Control
field bindweed
Field Bindweed

What Are Noxious Weeds and Where Did They Come From?

Noxious weeds are plants that are non native to our area. Most have come from Europe or Asia either accidentally or as ornamentals that have escaped. These plants have an advantage because the insects, diseases, and animals that would normally control them are not found here. Because these plants have developed specialized mechanisms to survive, they are able to spread at an alarming rate.

How They Move

russian knapweed
Russian Knapweed
Noxious weeds are spread by man, animals, water, and wind. Prime locations for noxious weeds to become established are disturbed sites such as roadsides, sites cleared for construction, areas that are overused by animals or humans, wetlands, and riparian corridors. Noxious weeds also hitchhike on vehicles, equipment, and in commodity shipments.

Herbicides most commonly used are:
  • Tordon 22K
  • Curtail
  • Escort
  • Milestone

Noxious Weed Hazards

Noxious weeds are established in soil by activities including:
musk thistle
Musk Thistle
  • Motorized vehicles
  • Construction
  • Road Maintenance
  • Domestic/Wildlife grazing
  • Wind, Water, & People
Most Noxious weeds grazed by domestic or wildlife animals are toxic.

Noxious Stipulations

  • Spring through Fall are the most opportune times to apply the noxious herbicides.
  • Without moisture the chemical cannot be absorbed into the plant and soil profile.
  • Herbicide will biodegrade by sunlight, wind, & movement of soil.

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