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Weed Resources



Prickly lettuce.
Prickly Lettuce, Lactuca Serriola L., a native to the Mediterranean region is. The plant is sometimes called wild lettuce, China lettuce or compass plant because the leaves on the main stem are held vertically in a north-south plane, perpendicular to direct sunlight.

Additional Resources:


Herbicide comparison for wheat, pulse, fallow land & canola.
Herbicide Comparison Tool

This tool allows users to identify herbicide products commonly used by dryland crop producers in eastern Washington that contain the same active ingredient(s). Users may search by trade name or active ingredient.

PNW Weed Management Handbook

This handbook is designed as a quick and ready reference for weed control practices and herbicides used in various cropping systems or sites in Idaho, Oregon, and Washington.

National Jointed Goatgrass Research Program

The National Jointed Goatgrass Research Program was initiated in 1994 by using a special USDA grant to fund regional research and extension activities directed toward limiting the damage caused by jointed goatgrass to winter wheat production in the western United States. View more information generated over the course of this 15-year program.

Additional Resources

Common Weeds List


Herbicide Resistance Testing Program

Weed ID Quiz


Weed Control Reports

Washington State University