High Desert Sagebrush-Cheatgrass Herbicide Subplots

Hart Mountain-Gray Butte Site Yearly Photo Sequence

Tebuthiuron (Spike 20P) was applied aerial on the Gray Butte herbicide plot to thin the sagebrush and encourage understory growth. This treatment took place in the fall of 2008 after baseline data were collected. Plateau pre-emergence herbicide was crossed with the Spike treatment on half of the subplots to control cheatgrass. The images below show two subplots from 2007–2010, one where Plateau was not used and one where Plateau was sprayed at a rate of 6oz per acre after treatment in fall 2008.

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Standard Subplot

 

Plateau Subplot

Standard sagebrush subplot, 2 years pre-treatment, 2007

2007

Pre-
treatment

Sagebrush plateau subplot, 2 years pre-treatment, 2007
Standard sagebrush subplot, pre-treatment, 2008

2008

Pre-
treatment

Sagebrush plateau subplot, pre-treatment, 2008
Standard sagebrush subplot one year post-treatment, 2009

2009

1 Year
Post-
treatment

Sagebrush subplot sprayed with Plateau, one year post-treatment, 2009
Standard sagebrush subplot two years post-treatment, 2010

2010

2 Years
Post-
treatment

Sagebrush subplot sprayed with Plateau, 2 years post-treatment, 2010
Site of future monitoring photos...

 

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