Rangeland Ecology & Management

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REVEGETATION OF EXOTIC ANNUAL GRASS-INVADED RANGELANDS
Author
Davies, Kirk W.
Boyd, Chad
Johnson, Dustin
Nafus, Aleta
Publisher
Society for Range Management
Publication Year
2018
Body

Revegetation of exotic annual grass-invaded rangelands is challenging with high rates of failure.� Successful revegetation starts with effective control of exotic annuals.� Effective control may require integrated treatments.� Following control, high establishment of perennial vegetation is critical to limiting re-invasion by exotic annuals.� However, establishment of perennial vegetation can be low, especially with native species.� Introduced perennial bunchgrasses establish more reliably and compete better with exotic annuals than native bunchgrasses on drier sites.� However, on cooler and wetter sites or with above average precipitation, native perennial vegetation may establishment in high enough numbers to limit exotic annual grasses.� New technologies may improve revegetation success.� For example, activated carbon pellets can be used to protect seeds incorporated within from pre-emergent herbicide damage.� This allows desired species to be seeded at the same time exotic annuals are controlled with pre-emergent herbicides.� Successful revegetation of exotic annual grass-invaded rangelands will require continued research to provide longer-term control of annuals and improve the establishment of seeded vegetation.

Language
English
Resource Type
Text
Document Type
Conference Proceedings
Conference Name
SRM Reno, NV