| |
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Cargill, L. M.;
Montgomery, D. P.;
Martin, D. L.;
Bell, G. E. |
|---|
| Author Affiliation: | Department of Horticulture and Landscape Architecture, Oklahoma State University, Stilwater, Oklahoma |
|---|
| Title: | Evaluation of herbicides for sericea lespedeza (Lespedeza cuneata [Dumont] G. Don) control along highway rights-of-way in Oklahoma |
|---|
| Section: | Utility, railroad and highway right-of-way and industrial sites
Other records with the "Utility, railroad and highway right-of-way and industrial sites" Section
|
|---|
| Meeting Info.: | 55th Annual Meeting, Atlanta, GA: January 28-30, 2002 |
|---|
| Source: | Southern Weed Science Society Proceedings. Vol. 55, 2002, p. 103. |
|---|
| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
|---|
| # of Pages: | 1 |
|---|
| Abstract/Contents: | "Duplicate field experiments were conducted at two locations in north central Oklahoma during 2001 to evaluate several postemergent herbicides for the selective control of sericea lespedeza and common bermudagrass tolerance along highway roadsides. Nine herbicide treatments were applied to sericea lespedeza plants ranging in height from 12 to 18 inches on 24 May 2001 and 1 June 2001 to plots 5 by 15 feet. Three Escort treatments were fall-applied to sericea lespedeza plants 6 to 12 inches tall on 12 September 2001 (no data available). The Escort treated plots had been previously mowed at an approximate height of six inches with a sicklebar mower on 24 July 2001 and 3 August 2001. Applications were made with CO2 pressurized R&D brand boom-type bicycly sprayer equipped with three TeeJet 8002 VS flat-fan spray tips and calibrated to deliver 20 gallons per acre at a pressure of 24 PSI. Herbicide treatments evaluated and expressed in product rates per acre, included Garlon 4 at 0.5, 1.0 and 1.5 pints, Vista at 0.5, 1.0 and 1.3 pints, Escort at 0.3, 0.5 and 1.0 ounces and Distinct at 4.0, 8.0, and 12.0 ounces. All herbicide treatments had a non-ionic surfactant and ammonium sulfate (AMS) added at a rate of 0.25% v/v and 3.4 lbs. product, respectively. Treatments were arranged in a randomized complete block design with three replications. Percent sericea lespedeza control and percent bermudagrass phytotoxicity were visually evaluated 1, 2 and 3 months-after-treatment (MAT). The sericea lespedeza control ratings ranged from 0 percent or no control to 100 percent or complete eradication. Percent bermudagrass phytotoxicity ratings were scaled from 0 to 100, where 0 equals no injury and 100 equals complete brownout or complete necrosis of the bermudagrass. Throughout the 2001 growing season, no bermudagrass phytotoxicity (0% injury) was produced from any of the herbicide treatments tested in these experiments. Excellent sericea lespedeza control was produced at 2 MAT with the two higher rates of both Garlon 4 at 1.0 and 1.5 pts./A (92% to 98%) and Vista at 1.0 and 1.3 pts./A (94% to 98%). The remaining treatments, including Distinct, produced significantly less and offered only moderate to good control (58% to 81%) of sericea lespedeza. When the final evaluations were recorded at 3 MAT, a simmilar trend was observed. The two highest rates of both Garlon 4 at 1.0 and 1.5 pts./A and Vista at 1.0 and 1.3 pts./A produced the best sericea lespedeza control (96% to 99%) followed by the low rate (0.5 pt.) of Vista (84%) and the highest rate (12.0 oz) of Distinct (82%). The lowest rate of Garlon 4 (0.5 pt.) and the two lowest rates (4.0 and 8.0 oz.) of Distinct did not provide an acceptable level of sericea lespedeza control throughout the 2001 growing season (58% to 72%)." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cargill, L. M., D. P. Montgomery, D. L. Martin, and G. E. Bell. 2002. Evaluation of herbicides for sericea lespedeza (Lespedeza cuneata [Dumont] G. Don) control along highway rights-of-way in Oklahoma. South. Weed Sci. Soc. Proc. 55:p. 103. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=83756 |
| If there are problems with this record, send us feedback about record 83756. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 611 .S6 v.54 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
