noxious weeds in a vacant lot

weed warrior graphic

Weed Warriors

The Weed Warriors Invasive Weed Training Program is held yearly, usually in late winter or spring. This two-day training introduces participants to the principles of Integrated Weed Management and focuses on improving ability to identify noxious weeds of local importance. A small fee is charged for program materials. Class is held live at the Washoe County Cooperative Extension office and can be videoconferenced to other Cooperative Extension offices where site proctors are available. Pesticide applicators receive Continuing Education Credits for attending this course.

This is an introductory-level training on common noxious weeds. The course focuses on the identification of 16 high-priority noxious weeds. Common nuisance weeds will also be discussed.

Each year, several dozen people go through the training and become Weed Warriors.

Material covered in 2018:

  • Weed law
  • Identification
  • Biology
  • Management and control of the following noxious weed species:
    • Canada Thistle
    • Dalmatian Toadflax
    • Diffuse Knapweed
    • Hoary Cress (Whitetop)
    • Leafy Spurge
    • Medusahead
    • Musk Thistle
    • Perennial Pepperweed (Tall Whitetop)
    • Perennial Sowthistle
    • Poison Hemlock
    • Puncturevine
    • Purple Loosestrife
    • Russian Knapweed
    • Scotch Thistle
    • Spotted Knapweed
    • Yellow Starthistle

University of Nevada Cooperative Extension Locations in 2018:

Reno: 4955 Energy Way

Gardnerville: 1325 Waterloo Lane


To learn about upcoming Weed Warriors education session and get more information, please contact:

Melody Hefner


Phone: (775) 784-4848


Persons in need of special accommodations or assistance must call or notify Melody Hefner at 775-336-0247 or at least three days prior to the scheduled class.