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Weed Control and Revegetation Following Western Juniper (Juniperus occidentalis) Control

Published online by Cambridge University Press:  12 June 2017

James A. Young,
Raymond A. Evans and
Carl Rimbey
James A. Young
Affiliation:
U.S. Dep. Agric., Agric. Res. Sev., Reno, NV 89512
Raymond A. Evans
Affiliation:
U.S. Dep. Agric., Agric. Res. Sev., Reno, NV 89512
Carl Rimbey
Affiliation:
Fish Springs Ranch, Standish, CA 96128
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Abstract

The control of western juniper (Juniperus occidentalis Hook.) trees released shrub and herbaceous vegetation from dominance of the tree overstory. Revegetation of the woodland with desirable browse and forage species required weed control of both shrub and herbaceous species. The method of tree control (herbicidal, mechanical, or wood harvesting) influenced subsequent weed control-revegetation options in the understory. Physical restraints imposed by standing dead trees resulting from picloram (4-amino-3,5,6-trichloropicolinic acid) treatment limited the use of weed control and seeding equipment. Accumulation of litter interfered with the use of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] for annual grass control on both the picloram and wood harvest plots. Establishment of forage species was most successful on the mechanically cleared plots. Attempts to revegetate with browse species were largely foiled by native herbivores, and selective predation occurred on herbaceous species.

Keywords

Secondary successionseedbed ecologyOdocoileus hemionus hemionusBromus tectorumArtemisia tridentataTaeniatherum caput-medusaeARTTRBROTEELYCM

Information

Type
Weed Biology and Ecology
Information
Weed Science , Volume 33 , Issue 4 , July 1985, pp. 513 - 517
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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