| |
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Smith, F. E.;
Taylor, J. M.;
Coats, G. E. |
|---|
| Author Affiliation: | Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762 |
|---|
| Title: | Evaluation of Horizon 2000 for johnsongrass [Sorghum halpense (L.) Pers.] control and turfgrass tolerance on highway rights-of-way |
|---|
| Meeting Info.: | Dallas, TX: January 17-19, 1994 |
|---|
| Source: | Southern Weed Science Society Proceedings. Vol. 47, 1994, p. 216-217. |
|---|
| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
|---|
| # of Pages: | 2 |
|---|
| Keywords: | TIC Keywords: Sorghum halepense; Paspalum notatum; Cynodon dactylon; Fluazifop-butyl; MSMA; Herbicide resistance; Herbicide application; Weed control; Postemergence herbicides
|
|---|
| Abstract/Contents: | "Field experiments were conducted to evaluate Horizon 2000 for POST johnsongrass control and bermudagrass and bahiagrass tolerance on highway rights-of-way in Mississippi. All herbicides were applied as a single or sequential application (1 mo after the initial treatment). Herbicide rates for the single treatment were 0.188, 0.20, 0.22 and 0.24 lb ai/A Horizon 2000, 0.188 lb ai/A Fusilade 2000, and 3.3 lb ai/A MSMA. Crop oil concentrate was added to all Horizon 2000 and Fusilade 2000 treatments at 0.25% (v/v). Surfactant was added to the MSMA treatment at 0.25% (v/v). Johnsongrass control ranged from 70 to 73% with 0.188 lb/A Horizon 2000 27 d after treatment (DAT). MSMA at 3.3 lb/A produced 90% control. At 40 DAT, johnsongrass control was 88 to 90% with 0.188 lb/A Horizon 2000. At 20 DAT, 0.188 lb/A Horizon 2000 injured bermudagrass 40%. Injury from 0.188 lb/A Fusilade was comparable to Horizon 2000. MSMA did not injure bermudagrass. At 20 DAT bahiagrass injury was 60% with 0.188 lb/A Horizon 2000 and 0.188 lb/A Fusilade 2000. MSMA injury to bahiagrass was comparable to 0.20 lb/A Horizon 2000 thru 40 DAT. Seedhead suppression was 90% with 0.188 lb/A Horizon 2000 and 0.188 lb/A Fusilade 2000, compared to 63% with 3.3 lb/A MSMA. Herbicide rates for comparing single vs sequential treatments were 0.188, 0.188 + 0.188 and 0.188 + 0.12 lb/A Horizon 2000 at the 20-in growth stage. Herbicide rates at the 38-in growth stage were 0.188 and 0.188 + 0.188 lb/A Horizon 2000. Crop oil concentrate was added to all Horizon 2000 treatments at 0.25% (v/v). At 57 days after initial treatment (DAIT), 0.188 + 0.188 lb/A Horizon 2000 controlled 38-in johnsongrass 60%. Horizon 2000 at 0.188 + 0.188 or 0.188 + 0.12 lb/A controlled 20-in johnsongrass 90% 40 DAIT. At 57 DAIT, injury to bermudagrass was 15% when 0.188 or 0.188 + 0.188 lb/A Horizon 2000 was applied to 38-in johnsongrass. At 20 DAIT, 0.188, 0.188 + 0.188 and 0.188 + 0.12 lb/A Horizon 2000 injured bermudagrass 40% when applied to 20-in johnsongrass. All treatments caused 90% seedhead suppression at 57 DAIT." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | Other items relating to: M S M A |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Smith, F. E., J. M. Taylor, and G. E. Coats. 1994. Evaluation of Horizon 2000 for johnsongrass [Sorghum halpense (L.) Pers.] control and turfgrass tolerance on highway rights-of-way. South. Weed Sci. Soc. Proc. 47:p. 216-217. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=33818 |
| If there are problems with this record, send us feedback about record 33818. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 611 .S6 v.47 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
