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Control of Green Rabbitbrush and Big Sagebrush with 2,4-D and Picloram

Published online by Cambridge University Press:  12 June 2017

Paul T. Tueller  and
Raymond A. Evans
Paul T. Tueller
Affiliation:
Division of Renewable Natural Resources and Range Scientist, Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., University of Nevada, Reno, Nevada
Raymond A. Evans
Affiliation:
Division of Renewable Natural Resources and Range Scientist, Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., University of Nevada, Reno, Nevada
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Abstract

A mixed stand of green rabbitbrush (Chrysothamnus viscidiflorus (Hook.) Nutt. var. puberulus Jepson) and big sagebrush (Artemisia tridentata Nutt.) was sprayed at different dates for 3 years with potassium salt of 4-amino-3,5,6-trichloropicolinic acid (picloram) at ¼, ½, and 1 1b/A, propylene glycol butyl ether esters of 2,4-dichlorophenoxyacetic acid (2,4-D) at 1, 2, and 3 1b/A, and a mixture of triisopropanolamine salts of picloram plus 2,4-D at ¼ plus 1 and ½ plus 2 1b/A. Picloram at ½ and 1 1b/A controlled rabbitbrush but not sagebrush. Poor rabbitbrush control and fair to good sagebrush control resulted from 2,4-D. The mixture of picloram and 2,4-D controlled rabbitbrush well but only partially controlled sagebrush. Forage release from brush control was negligible the first 2 years after spraying. During the third and subsequent years, production of crested wheatgrass (Agropyron desertorum (Fisch.) Schult.) was greatly increased.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 2 , April 1969 , pp. 233 - 235
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

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