| |
| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=244
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Barron, M. C.;
MacDonald, G. E.;
Brecke, B. J.;
Shilling, D. G. |
|---|
| Author Affiliation: | Department of Agronomy, University of Florida, Gainesville; West Florida Research and Education Center, Jay; Mid-Florida Research and Education Center, Apopka, FL |
|---|
| Title: | Integrated approaches to cogongrass [Imperata cylindrica (L.) Beauv.] management |
|---|
| Section: | Utility, railroad & highway rights-of-way, industrial sites
Other records with the "Utility, railroad & highway rights-of-way, industrial sites" Section
|
|---|
| Meeting Info.: | Houston, Texas: January 27-29, 2003 |
|---|
| Source: | Proceedings: Southern Weed Science Society: 56th Annual Meeting. Vol. 56, 2003, p. 158. |
|---|
| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Chemical versus cultural weed control; Herbicide evaluation; Imperata cylindrica; Integrated pest management; Weed control
|
|---|
| Abstract/Contents: | "Cogongrass [Imperata cylindrical (L.) Beauv.], a rhizomatous perennial grass, is a serious pest in many areas and situations, covering over 500 million acres throughout the world. Cogongrass has and continues to spread rapidly throughout the southeastern U.S., covering several thousand acres in Florida, Mississippi, and Alabama. Current control strategies rely heavily on chemical control, often with little or no long-term impact. This weedy species has an extensive rhizome system that allows for persistent regrowth and spread. Desirable native species are threatened by cogongrass because of their inability to compete directly with the weed. However, it may be possible to suppress cogongrass regrowth by introducing native plants after initial chemical control measures have been employed. In doing this, factors such as discing systems and grass species will be studied as a component of long-term control of cogongrass. In Hernando County, Florida, plots were separated into two levels, one being disced in August and the other undisced. Four treatments of herbicides were applied three months later, including glyphosate at 4.0 lb ai/A, glyphosate at 2 lb ai/A + imazapyr at 0.75 lb ai/A, imazapyr at 1.0 lb ai/A, and an untreated control. After herbicide application, three revegetation schemes were established in the plots the following spring. The grasses used were bahiagrass (Paspalum notatum), bermudagrass (Cynodon dactylon), and a native species mix (Crotalaria lanceolata and Crotalaria juncea). Twelve months after treatment, plots sprayed with imazapyr alone or the imazapyr/glyphosate mix provided the best control of cogongrass, regardless of revegetation scheme. Discing did not influence control strategies at 12 MAT. However, at 18 MAT, the plots that were initially disced had substantially high control of cogongrass regrowth. Bahiagrass provided higher control of cogongrass than the bermuda and native mix. An additional study involved the natural recruitment patterns after cogongrass treatment with variable rates of imazapyr and imazapic. Both chemicals were overlapped at 0.25 lb ai/A, 0.5 lb ai/A, and 1.0 lb ai/A. Evaluations were taken 3 MAT, with hairy indigo (Indigofera hirsute) being the predominant native species successor. Interestingly, there was little variability in the percent cover of hairy indigo throughout all rates of herbicides. This indicates that hairy indigo has a high tolerance for these two herbicides and may be a potential species used in revegetation schemes to suppress cogongrass." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | "Invasive weeds: Real or imagined threat?"
This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Barron, M. C., G. E. MacDonald, B. J. Brecke, and D. G. Shilling. 2003. Integrated approaches to cogongrass [Imperata cylindrica (L.) Beauv.] management. South. Weed Sci. Soc. Proc. 56:p. 158. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=224625 |
| If there are problems with this record, send us feedback about record 224625. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=244
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
| Find from within TIC:
Digitally in TIC by file name: swssp2003 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
