Rangeland Ecology & Management

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Saltcedar recovery after herbicide-burn and mechanical clearing practices
Author
McDaniel, K. C.
Taylor, J. P.
Publisher
Society for Range Management
Publication Year
2003-09-01
Body

Mechanical clearing and herbicide-burn treatments were compared to evaluate saltcedar (Tamarix chinensis Lour.) control and recovery along the Rio Grande on the Bosque del Apache National Wildlife Refuge, Socorro, N.M. The herbicide-burn treatment included an aerial application of imazapyr (+)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acid] + glyphosate [N-(phosphono-methyl)glycine] (0.6 + 0.6 kg ai ha-1 rate) followed 3 years later by a prescription broadcast fire that eliminated > 99% of the standing dead stems. Six years after initial herbicide application, saltcedar mortality was 93%. Mechanical saltcedar clearing entailed removing aerial (trunks and stems) growth by blading, stacking and burning debris, followed by removal of underground plant portions (root crowns) by plowing, raking, and burning stacked material. Saltcedar mortality 3 years after mechanical clearing averaged 70%, which was deemed unsatisfactory. Thus, root plowing, raking, and pile burning was repeated. Three years later, after the second mechanical clearing, saltcedar mortality was 97%. Costs for the herbicide-burn treatment averaged 283 ha-1, whereas mechanical control costs were 884 ha-1 for the first surface and root clearing and an additional 585 ha-1 for the second root clearing. Riparian managers should consider environmental conditions and restoration strategies prior to selecting a saltcedar control approach. Although control costs were significantly lower for the herbicide-burn treatment compared to mechanical clearing in this study, the choice of methods should always consider alternative control strategies for saltcedar. Frequently, combinations of methods result in more efficient, cost-effective results. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/4003834
Additional Information
McDaniel, K. C., & Taylor, J. P. (2003). Saltcedar recovery after herbicide-burn and mechanical clearing practices. Journal of Range Management, 56(5), 439-445.
IISN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/643462
Journal Volume
56
Journal Number
5
Journal Pages
439-445
Journal Name
Journal of Range Management
Keywords
plowing
root plowing
Tamarix chinensis
imazapyr
cost effectiveness
plant volume
brush cutting
volume
glyphosate
stems
height
riparian areas
brush control
mortality
cutting
prescribed burning
land restoration
plant density
invasive species
canopy
New Mexico
plant height
Riparian restoration
imazapyr
glyphosate
prescribed fire
root plowing
root raking