Non-native Phragmites control research has been limited by the short temporal scales and small spatial scales of past experiments. Results from these limited studies may not apply at the scale that most restoration takes place. In this webinar, we will present four years of results from two large-scale Phragmites control studies conducted on the shore of the Great Salt Lake, Utah. These studies examine the effectiveness of multiple control treatments at two spatial scales: large stands (1.2 ha/3 acres; the size of older, well-established invasions) and small patches (50 m x 20 m/0.25 acre; the size of newer invasions). The treatments evaluated in the large patch study are 1) untreated control 2) fall glyphosate spray, winter mow, 3) summer imazapyr spray, winter mow, 4) summer glyphosate spray, winter mow, 5) fall imazapyr spray, winter mow. The treatments evaluated in the small patch study include treatments 1-4 above plus 5) summer mow, fall glyphosate spray, 6) summer mow, then black plastic solarization. These studies also compare the plant communities that return after restoration efforts, data rarely evaluated in previous studies. Furthermore, given that non-native Phragmites spreads primarily by seed, we evaluated the ability of treatments to reduce seed production and spread. Join us for this webinar to see which management regime is the best for your site.
Phragmites Management at Multiple Scales: Treatment Comparisons on the Great Salt Lake
Author: Christine Rohal, Utah State University; Chad Cranney, Utah Division of Wildlife Resources
Year: 2016
Digital Object Identifier:
Type: Video, Webinar
Topic: Management