The OSU Weed Science Group conducts greenhouse, laboratory and small plot herbicide evaluation trials in support of the development of weed management activities in the diverse cropping systems of Western Oregon. Labeled and experimental herbicides are evaluated for crop safety and weed control efficacy in the following crops: Winter and Spring Wheat, Cool-season Grasses grown for seed, Native cool-season Grasses and forbs grown for seed, Canola, Meadowfoam, Camelina, Clovers and Peppermint among others.

Annual Bluegrass

Roughstalk Bluegrass

California Brome

Sharp Point Fluvelin

Annual Sowthistle

Mayweed Chamomile

Catchweed Bedstraw

Prickly Lettuce


Weed Science Related Links:

OSU Weed Science

PNW Weed Management Handbook

Postharvest Residue Management for Grass Seed Production in Western Oregon

Western Society of Weed Science


Weed Identification Resources:

Weed Science Society of America

Center for Invasive Plant Management

USDA Plants Database


Herbicide Labels:

CDMS Database