| |
| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2001jou1001.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
|---|
| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Busey, P. |
|---|
| Author Affiliation: | Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL |
|---|
| Title: | Optimum herbicide strategy for managing mixed weed populations in the southern U.S. |
|---|
| Section: | Turfgrass weeds
Other records with the "Turfgrass weeds" Section
|
|---|
| Meeting Info.: | Toronto, Ontario, Canada: July 2001 |
|---|
| Source: | International Turfgrass Society Research Journal. Vol. 9, No. Part 2, 2001, p. 1001-1004. |
|---|
| Publishing Information: | Oakville, Ontario, Canada: International Turfgrass Society |
|---|
| # of Pages: | 4 |
|---|
| Keywords: | TIC Keywords: Herbicides; Weed control; Postemergence herbicides; Kyllinga brevifolia; Urochloa subquadripara; Cynodon dactylon; Cynodon transvaalensis; Bentazon; Halosulfuron; Imazaquin; MSMA; Application rates; Herbicide injury; Weed competition
|
|---|
| Cultivar Names: | Tifgreen |
|---|
| Abstract/Contents: | "In a mixed weed population, an optimum herbicide strategy maximizes turf canopy coverage and health. The objective was to study the effect of postemergence herbicides alone and in mixtures on populations of green kyllinga (Kyllinga brevifolia Rottb.), tropical signalgrass (Urochloa subquadripara (Trin.) R.D. Webster), and `Tifgreen' bermudagrass turf (Cynodon transvaalensis Burtt-Davy x C. dactylon (L.) Pers.)[.] Initial coverage was green kyllinga, 43%; tropical signalgrass, 29%; and bermudagrass, 28%. There were 12 herbicide treatments, including a water control, in five replications. Treatments were bentazon, 1.12 kg ha-1; halosulfuron, 0.07 kg ha-1; imazaquin, 0.56 kg ha-1; and MSMA, 2.52 kg ha-1 applied alone and in all binary combinations, plus MSMA + metribuzin at 0.28 kg ha-1. Halosulfuron and imazaquin rates were reduced in half in mixtures. There were two sets of applications separated by 11 weeks, each with two applications split by 10-11 days. Treatments with halosulfuron or imazaquin were applied only once per set of applications. Only treatments with halosulfuron, imazaquin, or MSMA + metribuzin injured (P < 0.05) green kyllinga. Only treatments with MSMA injured tropical signalgrass. Only MSMA + metribuzin and MSMA + halosulfuron injured green kyllinga and tropical signalgrass, but did not maximize bermudagrass coverage. The optimum treatments, bentazon + MSMA and MSMA alone, increased bermudagrass coverage to 97% and 94%, respectively, compared with 43% for the water control. Although imazaquin did not injure bermudagrass, it reduced bermudagrass coverage to 13%. In removing kyllinga, imazaquin had opened a niche that was colonized by tropical signalgrass at the expense of bermudagrass. The optimum herbicide strategy must consider not only injury to weeds but competition among weeds." |
|---|
| Language: | English |
|---|
| References: | 5 |
|---|
| See Also: | Other items relating to: M S M A |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Busey, P. 2001. Optimum herbicide strategy for managing mixed weed populations in the southern U.S.. Int. Turfgrass Soc. Res. J. 9(Part 2):p. 1001-1004. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=74478 |
| If there are problems with this record, send us feedback about record 74478. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2001jou1001.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
| 
MSU catalog number: SB 433 .I52 v. 9 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
