| |
| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=113
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Strahan, R. E.;
Beasley, J.;
Borst, S. |
|---|
| Author Affiliation: | LSU AgCenter, Baton Rouge, LA |
|---|
| Title: | Southern watergrass (Hydrochloa) management in bermudagrass athletic turfgrass |
|---|
| Section: | Posters
Other records with the "Posters" Section
|
|---|
| Meeting Info.: | Charleston, South Carolina: January 23-25, 2012 |
|---|
| Source: | 2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 41. |
|---|
| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Control methods; Drainage improvement; Herbicide evaluation; Luziola; Sports turf renovation; Weed control; Weed profile
|
|---|
| Abstract/Contents: | "Southern watergrass (Hydrochloa) is a pale green perennial grassy weed that normally infests aquatic areas. However, in recent years southern watergrass has become more of a problem on irrigated or poorly drained bermudagrass athletic fields, especially around irrigation heads. The weed's yellowish color and texture are clearly visible and create a considerable reduction in the overall visual quality of the sports field. Once established, southern watergrass has shown a tolerance for drought and low mowing and the pale color is not masked with increasing levels of nitrogen fertilizer. Turf managers have reported very poor results with common grass killing herbicides such as MSMA, diclofop and others. Complete renovation and field grading would eliminate the conditions that favor watergrass infestations but the current poor economic situation has the reduced the ability of smaller universities and sports complexes to renovate fields. The following research was initiated to screen several herbicides with grass activity to evaluate their potential as an option for managing this growing weed problem. A field study was conducted in 2010 at the Southeastern Louisiana University (SLU) soccer practice field. The soccer field lacked adequate drainage and had a very high level of southern watergrass naturally infesting the common bermudagrass turf. Herbicides evaluated included MSMA, atrazine, simazine, trifloxysulfuron, iodosulfuron+thiencarbazone+dicamba, foramsulfuron, rimsulfuron, flazasulfuron, metsulfuron, diclofop, and quinclorac. The herbicides were evaluated at their highest labeled rates. Herbicides were applied with a CO2 pressurized backpack sprayer equipped with 11003 XR flat fan nozzles that delivered 30 GPA at 23 psi. The area was mowed weekly and the height was maintained at 2 inches. Plot size was 4 ft x 10 ft. The test plots had a uniform stand of southern watergrass with an average mix of 75% southern watergrass and 25% common bermudagrass. Visual ratings of percent weed control and turf injury data were collected at two week intervals. The experiment was conducted as a randomized complete block with 4 replications. Data were subjected to analysis of variance (P=0.05) and means were separated using Fisher's LSD. MSMA, simazine, and atrazine provided 25%, 35% and 40% control respectively, 2 weeks after treatment (WAT). However, by 4 WAT, the southern watergrass had recovered and very little damage could be observed from these herbicides. Trifloxysulfuron, iodosulfuron+thiencarbazone+dicamba, foramsulfuron, rimsulfuron, metsulfuron, and flazasulfuron provided less than 10% control in the study. Southern watergrass control with diclofop and quinclorac did not exceed 25% for the duration of the study. By 6 WAT, all herbicides evaluated were similar to the untreated check." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Strahan, R. E., J. Beasley, and S. Borst. 2012. Southern watergrass (Hydrochloa) management in bermudagrass athletic turfgrass. South. Weed Sci. Soc. Proc. 65:p. 41. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=227004 |
| If there are problems with this record, send us feedback about record 227004. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=113
Last checked: 08/07/2013
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: swssp2012 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
