Integrating Selective Herbicide and Native Plant Restoration to Control Alternanthera philoxeroides (Alligator Weed) Page: 8
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A greenhouse component and a field component were included in this project.
Similar treatment regimes were applied to both components.
The greenhouse component of this project took place at the Water Research Field Station
greenhouse at the University of North Texas. The experiment utilized a 3X5 factorial design with
three replicates per treatment level (Table 1). Treatments applied were "herbicide application
frequency" and "competitor species." Effects of herbicide application frequency were tested
using three levels; application frequencies of zero, one, and two. Effects of competitor species
were tested using five levels; no competitors, two native monocot species, and two native dicot
species. The four plant species were selected based on data from previous field surveys and seed
bank surveys taken within the field study site.
Greenhouse Experiment Table of Treatments
Justica Polygonum Sagittaria
No Competitor americana densiflorum platyphylla Carex brevior
Herbicide 0 n=3 n=3 n=3 n=3 n=3
Application 1 n=3 n=3 n=3 n=3 n=3
Frequency 2 n=3 n=3 n=3 n=3 n=3
Note. Three replicates per treatment were used.
Greenhouse Experiment Materials and Methods
A. philoxeroides was propagated vegetatively from similarly sized, single node, clippings
collected from greenhouse stock plants originally collected from a retention pond at Six Flags
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Adams, Justin. Integrating Selective Herbicide and Native Plant Restoration to Control Alternanthera philoxeroides (Alligator Weed), thesis, December 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc103280/m1/15/: accessed May 29, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .