Grass Seed Weed Management

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.

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Annual Bluegrass

Annual Bluegrass 

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Roughstalk Bluegrass

Roughstalk Bluegrass 

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Rattail Fescue

Rattail Fescue 

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California Brome

California Brome 

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Sharp Point Fluvelin

Sharp Point Fluvelin 

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Annual Sowthistle

Annual Sowthistle 

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Mayweed Chamomile

Mayweed Chamomile 

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Catchweed Bedstraw

Catchweed Bedstraw 

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Prickly Lettuce

Prickly Lettuce